252/2004 Sb.
DECREE
of 22 March. April 2004,
laying down public health requirements for potable and hot water and
the frequency and scope of the control of drinking water
187/2005: Sb.
293/2006: Sb.
83/2014: Sb.
The Ministry of health shall lay down pursuant to § 108 paragraph. 1 of law No.
258/2000 Coll., on the protection of public health and amendment to certain
related laws, as amended by Act No. 274/2001 Coll. and Act No.
274/2003 Coll. (hereinafter the "Act") to implement section 3 (2). 1, 3 and 5, and section 4
paragraph. 1, 2, 4 and 7 of the Act and in accordance with § 19 para. 1 (b). a), b) and (f)) of the Act
No. 110/1997 Coll. on foodstuffs and tobacco products and about the change and
certain related laws, as amended by Act No. 306/2000
Coll.:
§ 1
The subject of the edit
This Decree is in accordance with the law of the European Communities ^ 1)
lays down limits for microbiological, biological, physical,
chemical indicators and organoleptic quality of drinking water ^ 2) including
drinking water packaged ^ 3) and hot water supplied by piping hot water or
internal water service, which are structurally linked to the mixing battery
with the water pipes of drinking water (hereinafter referred to as "hot water"), as well as the water
warm made of the individual resource for the purposes of personal hygiene
employees. The Decree also establishes the scope and frequency of checks on compliance with the
drinking water quality and requirements for methods of quality control of drinking water.
§ 2
Definition of terms
For the purposes of this Ordinance, means the
and in a hygienic limit)-value laid down in annexes 1, 2 and 3, or
the value established on the basis of the law of public authority
health, ^ 4)
(b)) the limit value-the value of drinking water quality indicators, the
exceeding the usually does not present acute health risk. If it is not in
pointer noted, this is the upper limit of the range of permissible
values,
(c)) the highest-value threshold of serious health indicators
quality of drinking water, as a result of exceeding the limits of use
water as a drinking, unless authority to protect public health on the basis of
the law ^ 4) otherwise,
(d)), well-stocked areas specified by the territory of one or more parts of the
cadastral territory in which is localized distribution network in which
drinking water comes from one or more sources and whose quality is possible
be regarded as about the same and the water in this grid is supplied
one operator, ^ 5) where applicable, the owner of the water supply for the public
the need for,
the vending machine-e) artificially installed a tank of drinking water that is not
directly connected to the water supply, but the water it imports or brings from
suitable water sources, with the abstraction of drinking water is done automatically
or by manual dosage; for drinking water vending machine is not
beverage vending machine and vending machine bottled water, usually
known as "the watercooler"
f) interruption of the water supply-water outage or its parts
associated with the discharge of water from the pipes,
(g)) the full analysis-analysis of the scope of the parameters listed in annex No.
1 taking into account the notes to these parameters if protection authority
public health on the basis of the Act does not provide otherwise,
(h) analysis-kráceným analysis) in the range of indicators listed in annex
# 5 taking into account the notes to these parameters if protection authority
public health on the basis of the Act does not provide otherwise.
§ 3
Indicators of the quality of drinking and hot water and their limits
(1) drinking water shall have the physico-chemical properties, which
do not pose a threat to public health. Drinking and hot water must not be
contain micro-organisms, parasites and substances of any kind in the number of
or concentration, which might endanger public health. Indicators
the quality of drinking water and their limits are given in annex No.
1. in the case of raw or drinking water, which is artificially reduced when editing
the content of calcium or magnesium, may be after you modify the magnesium content of less than
10 mg/l and calcium content of less than 30 mg/l. Radiological indicators of drinking
the water and lays down specific limits legislation. ^ 6)
(2) hot water quality parameters according to § 3 (2). 3 the first sentence and the second
the law and their limits are given in annex 2.
(3) hot water quality parameters according to section 41a of paragraph 1. 1 of the Act, and their
limits are given in annex 3.
Review of drinking water
§ 4
(1) the minimum annual frequency and sample analyses of drinking water for
check that the water quality of drinking water, has set out in annex No.
4. If the drinking water Is supplied only for part of the year (seasonally), the frequency of
the analyses shall be reduced proportionally short, but shall not be less than the lowest
the categories of annex 4. The minimum scale of the control sample analyses
drinking water set out in annex 5.
(2) Excluding the frequency referred to in paragraph 1, the sampling and analysing of samples of drinking
water shall be carried out
and the new part of the tap water), ^ 7) which is to be put into operation,
(b)) if the water supply for more than 24 hours,
(c)) use of parts before starting the seasonal water or
individual supply of drinking water, with a minimum frequency of analyses
and seasonal operation of up to 6 months, which are operated in accordance with § 3 (1).
2 (a). a) to (d)) of the Act, it is possible that analysis counted towards the minimum
the annual frequency referred to in paragraph 1,
d) after fixing the crash tap water, that could affect the quality of water in the
tap water.
(3) the analysis referred to in paragraph 2 shall be in the range of kráceného analysis
According to annex No 5 Advanced indicators, whose content may be
increased due to changes in the mode of supply of drinking water.
(4) before starting a new source of drinking water to the operation must be performed
for a complete analysis of the revised drinking water in the range of the annex No 5. The results of the
the analysis must not be older than 6 months.
(5) check the water used in the means of transport shall be carried out in
kráceného analysis of the scope, or advanced indicators, which
value can be changed by the influence of the materials with which it comes into
contact, or additional water treatment, provided that the water is being removed
tap water, where the water quality meets the requirements of this Ordinance.
§ 5
(1) samples of drinking water collected for inspection so that the
representative of the quality of drinking water consumed throughout the year
and for the entire water supply network. The number of sampling points must be equal to at least
the number of krácených analyses according to annex No 4, for water supplying
more than 5000 inhabitants, the number of sampling points must be equal to at least 80%
number of krácených of the analyses referred to in annex 4.
(2) sampling points must be selected so that more than 50% of the jobs
the subscription was not permanent but change every year. Changing the sampling point
shall be selected by the method of random selection or other appropriate method, which
ensure that none of the supplied object will not be excluded from the options
checks.
(3) sampling of drinking water is done in places where they are to be met
water quality requirements (§ 8). If this is about indicators of antimony, arsenic,
benzene, beryllium, boron, bromates, nitrates, fluorides, chlorides,
cyanides, mikrocystin LR, ozone, pesticidal substances, mercury, selenium, and sulphates,
for which it is not expected that their concentration during
the distribution between the treatment plant and the point of consumption increase, the samples can be
drinking water collected either at the treatment plant or in the appropriate locations
the water supply network, for example, the water tank, if that's demonstrably
eliminates changes in the measured values of the indicators.
§ 6
The frequency and scope of analysis for vending machines
(1) before commissioning the new vending performs
for a complete analysis of drinking water. During the first year of operation is performed
Once a month the microbiological analysis in the range of kráceného analysis and
Once in 6 months, biological, chemical, physical and organoleptic
an analysis of the extent of the enhanced analysis of kráceného lead indicators,
chromium, nickel, and zinc. For zinc down maximum limit value of 3
mg/l. results satisfactory in the case of hygienic during the first
year of operation, from the second year of operation it performs once a year
biological, chemical, physical and organoleptic analysis within the range
kráceného analysis and once every 2 months also microbiological analysis in
the range of kráceného analysis.
(2) the water source from which the water is fed into the machines imported or,
the frequency of the checks listed in the table of annex # 4 by volume
produced water, at least in the range of 6 krácených advanced analyses
an indicator of intestinal enterococci, and 1 for a complete analysis of per year.
§ 7
Requirements for sampling and analysis methods
(1) unless otherwise provided in this Ordinance otherwise, proceed when sampling
drinking hot water or according to the methods contained in Czech technical
standards. ^ 8)
(2) for the analysis of the sample of microbiological and biological indicators of drinking
and warm water as referred to in section A, annexes 1 to 3 are established methods
referred to in section A of annex 6. For the determination of the values of the physical and
chemical indicators of drinking and hot water referred to in section B of the annexes no.
1 to 3 it is possible to use any methods of satisfying the requirements of
laid down in section B of the annex No 6.
(3) Demonstrate that the results of other methods, not listed in section A of the annex.
6, are at least as reliable as the results of laboratory methods, which
use provided for in this Decree shall be made using the method described in the technical
the standard, which are set to determine the equivalence of the two criteria
^ 10) Microbiological methods.
§ 8
The place of fulfilment of the requirements on the quality of drinking and hot water
(1) the health indicators of the quality of drinking water limits must be complied with
and for drinking water), which is supplied from a distribution network, at the place within the
of the building or on the property, where drinking water is flowing out of taps for
Subscribe for human consumption,
(b)) in the drinking water, which comes from wells, artificially installed
tanks or tanks, in place of its effluent from wells, tanks or
tanks,
(c) for packaged drinking water) ^ 3) put into bottles or containers intended for
the sale or supply to the replacement in the place of bottling water. At the packed
drinking water intended for sale shall be further levels of hygiene after
the period of minimum durability to open original packaging except
indicators number of colonies 22nd. C and 36th. (C) subject to the limit
colony-forming unit values of 500/ml (hereinafter referred to as "cfu/ml") for
a pointer to the number of colonies 22nd. (C) and 100 cfu/ml for the indicator counts
colonies at 36th. (C),
d) for drinking water, which is used in food processing equipment, ^ 9) on the
its place of use.
(2) the health indicators limits the hot water must be maintained at all
places inside the building or on the property, where hot water flows out of the tap
or out of the shower.
§ 9
Repeated analyses
(1) if the result of the determination of the values of the chemical and physical characteristics
with a threshold value and the maximum threshold value or the microbiological and
biological indicators with the hygienic limit value higher than the limit,
water sampling and determination of the values of the indicators for which there was a
exceeding the limit, immediately repeated for confirmation failure
hygienic limits, where appropriate, to verify the effectiveness of performed
remedial measures. In the case of the trivial limit values
corrective action under section 4 (4). 5 of the Act can be implemented
at the latest after confirmation of non-compliance with sanitary limits.
(2) if the result of the determination of the values of microbiological and biological
indicators with the highest emission limit value higher than a hygienic limit are
immediately taken corrective measures pursuant to § 4 paragraph 2. 5 of the Act, and the subscription
a sample of the water and the determination of the values of the indicators for which has been exceeded
hygienic limit is repeated to confirm the effectiveness of the implemented
remedial measures.
§ 10
Particulars of the applications, proposals, and announcements
(1) an application under section 4, paragraph 4. 4 of the Act contains
and) identification number, if assigned, the name or business name
the customer checks the address of its registered office of water, in the case of legal
the person, or the identification number, if assigned, first name, last name,
the address of the place of business, in the case of a physical person, doing business, or
name, surname, home address, in the case of a natural person
the nonentrepreneurial,
(b) the scale and design) the frequency of inspections of drinking water on the grounds
(c)), well-stocked area, the quantity of water supplied per day, number of
the population served and
(d)) in the case of a proposal to reduce the scope and frequency of control card
constant quality and complying with the terms of the relevant indicators of the quality of
drinking water and its sources according to § 11 and results of the checks for the period
the last 2 years. In the case of smaller water mains and wells is the number of
the analyses for this period is less than six, in addition to the results of the last 2 years
the results of the previous years, so that was accompanied by a series of six results.
(2) the notification referred to in § 4, paragraph 4. 6 of the Act contains
and) identification number, if assigned, the name or business name
the customer checks the address of its registered office of water, in the case of legal
the person, or the identification number, if assigned, first name, last name,
the address of the place of business, in the case of a physical person, doing business, or
name, surname, home address, in the case of a natural person
the nonentrepreneurial,
(b)), well-stocked area, the quantity of water supplied per day, number of
population served, sampling, the place where the substance or
component is detected,
c) placing the substance or component to which the notice refers to, the results of all
the analyses carried out,
(d) substances or components) the origin, if known, and
e) corrective action plan.
§ 11
(1) for a reduction in the frequency of the checks referred to in section 4, paragraph 4. 4 law
satisfactory results of the physical, chemical and organoleptic
the indicators within the meaning of § 10 para. 2 (a). (d)) to be constant values without
abnormal changes with the findings less than 50% of the hygienic limit. It
does not apply in the case of the color indicators, conductivity and pH, where it must be
the value of a constant (at a pH of 1 unit), and the pointer to the taste and smell,
that must always be acceptable to consumers and indicators of fluorides and
sulfates, which are regarded as meeting the results of constant values without
abnormal changes with the findings of lower than 75% hygienic limit. In
the case of microbiological and biological indicators to comply with
the results for the number of colonies 22nd. (C), the number of colonies at 36th. (C) and
the microscopic image are considered constant values without abnormal changes
not exceeding the hygienic limit. The indicators are coliform bacteria
at least 95% of the results permitted with zero values and in the remaining
cases, the highest value of 5 cfu/100 ml, in the case of submission of a series of less
than 20 results is only 1 result with non-zero value,
that does not exceed 5 cfu/100 ml.
(2) in determining the lower number of samples for selected indicators complete
the analysis, the results shall be considered to satisfy the constant values without
abnormal changes with the findings less than 50% of the hygienic limit for
indicators with the limit value, and with the findings of lower than 30% of the sanitary
limit the characteristics with the highest limit.
Transitional and final provisions
§ 12
(1) from the date of entry into force of the Ordinance until 31 December 2006. December 2007 must be
sampling points chosen so that more than 25% of the sites has not been
Permanent but change every year. Changing the sampling point shall be selected
the method of random selection or other appropriate method, to ensure that
None of the supplied object will not be excluded from the scan options.
(2) for the indicator "bromates" applies a hygienic limit of 25 mg/l (the highest
limit value) to 24. December 2008, for the indicator "chloritany"
hygienic limit of 400 mikrog/l (the limit) to 24. in December 2006, for
a pointer to a "lead" applies a hygienic limit of 25 mikrog/l (the maximum limit
value) to 24. December 2013. For bottled drinking water and drinking water
supplied from the vending machines charged limits referred to in
Annex No 1, from the entry into force of the Decree.
section 13 of the
Repeals the Decree 376/2000 Coll. laying down the requirements for the
drinking water and the extent and frequency of its inspections.
§ 14
The effectiveness of the
This Decree shall enter into force on 1 January 2000. May 2004.
Minister:
Mudr. Kubinyi, Ph.d. in r.
Č. 1
Microbiological, biological, physical, chemical and organoleptic
the indicators of drinking water and their limits
A. Microbiological and biological indicators
----------------------------------------------------------------------------------
no unit type of limit indicator Explanations
limit
----------------------------------------------------------------------------------
1 Clostridium perfringens cfu/100 ml 0 MH 1
2 Intestinal enterococci cfu/100 ml 0 NMH
250 ml of 0 cfu/NMH 2
3 Escherichia coli cfu/100 ml 0 NMH
250 ml of 0 cfu/NMH 2
4 coliforms cfu/100 ml 0 MH
Cfu/250 ml 0 MH 2
5 microscopic image-% 10 MH 3
abioseston
6 microscopy-individuals/ml 50 MH 3.4
the number of organisms
7 microscopic image-individuals/ml 0 MH 3, 4, 5
living organisms
8 numbers of colonies at 22 ° c cfu/ml Without MH 6
abnormál-
tion changes
Cfu/ml 200 DH 7
Cfu/ml 100 NMH 2
9 the number of colonies at 36 ° c cfu/ml Without MH 8
abnormál-
tion changes
Cfu/ml 40 DH 9
Cfu/ml 20 NMH 2
10 Pseudomonas aeruginosa cfu/250 ml 0 NMH 2
----------------------------------------------------------------------------------
(B) the physical, chemical and organoleptic indicators
-------------------------------------------------------------------------------------
no unit symbol limit pointer type endnotes
limit
-------------------------------------------------------------------------------------
11 1.2-dichloroethane µ g/l 3.0 NMH
12 acrylamide µ g/l 0.1 NMH 10
13 ammonium NH4 + 0.50 mg/l MH
14 antimony Sb 5.0 µ g/l NMH
15 arsenic As µ g/l 10 NMH
16 color mg/l Pt 20 MH
17 benzene µ g/l 1.0 NMH 11
18 benzo [a] pyrene BaP µ g/l 0.010 NMH
19 beryllium Be µ g/l 2.0 NMH 12
20 boron (B) mg/l 1.0 NMH
21 bromates µ g/l BrO3 10 NMH 13
22 total organic carbon TOC mg/l 5.0 MH 14
23 nitrates NO3 mg/l 50-NMH 15
24 nitrites NO2 NMH 0.50 mg/l 15
25 µ g/l of epichlorohydrin 0.10 NMH 10
26 fluoride (F)-1.5 mg/l of NMH
27 aluminium Al mg/l 0.20 MH
28 magnesium Mg mg/l 10 MH 16
20-30 DH 16
29 chemical consumption of COD-Mn mg/l 3.0 MH 17
oxygen (permanganate)
30 mg/l free chlorine 0.30 MH 18
31 chlorethen µ g/l 0.50 NMH 10
(vinyl chloride)
32 chlorides Cl mg/l 100 MH 19.20
33 chloritany ClO2-µ g/l 200 MH 13.18
34 chromium Cr 50 µ g/l NMH
35 the taste acceptable MH 21
for the customer
36 cadmium Cd 5.0 µ g/l NMH
37 conductivity mS/m 125 to MH 20.22
38 total cyanides CN-mg/l 0.050 NMH
39 mg/l manganese Mn 0.050 MH 23
copper Cu 40 µ g/l 1000 NMH 24
41 microcystin-LR µ g/l 1 25 NMH
42 nickel Ni µ g/l 20 NMH 26
43 lead Pb µ g/l 10 NMH 26
44 ozone O3 µ g/l 50 MH 18
45 odor acceptable MH 21
for the customer
46 pesticidal substances PL µ g/l 0.10 NMH 27.28
47 pesticidal substances total PLC µ g/l 0.50 NMH 27.29
48 6.5-9.5 pH pH MH 20.31
49 polycyclic PAU µ g/l 0.10 NMH 30
aromatic hydrocarbons
Mercury Hg 50 µ g/l 1.0 NMH
51 selenium 10 µ g/l NMH
52 sulphate SO42-mg/l 250 MH 20
sodium 53 mg/l To 200 MH
54 silver Ag µ g/l 50 NMH 32
55 tetrachlorethen PCE µ g/l 10 NMH 33
56 trihalomethany THM µ g/l 100 NMH 34
57 trichlorethen TCE µ g/l 10 NMH 33
58 trichloromethane µ g/l 30 MH 13
(chloroform)
calcium 59 mg/l Ca 30 MH 16
DH 40-80 16
60 calcium and magnesium Ca + Mg mmol/l 2-3.5 DH 16
61 clouding ZF (t, n) 5 MH 35
62 iron Fe mg/l 0.20 MH 36
63 temperature ° c 8-12 DH
-------------------------------------------------------------------------------------
Abbreviations used:
CFU-colony forming unit
NMH-highest limit value
MH-limit value
DH-recommended value (section 3, paragraph 1, of Act No. 258/2000 Coll., on the protection of public health
and amending certain related laws, as amended
The explanatory notes to the tables:
1. Establishes the drinking water of maintained directly from surface water or
in the groundwater that are affected by surface water. Where the value of the
This indicator is not complied with, they shall explore the water source and
technology to determine if human health is potentially
threatened by the presence of pathogenic micro-organisms, such as, in particular,
kryptosporidie. How the person responsible establishes the § 4 paragraph 2. 5 of the Act.
2. Applies only to bottled drinking water.
3. An integral part of examination results and other information are obtained
When the microscopic, which may contribute to the interpretation of the
the results. This description shall include in particular the composition of the present
abiosestonu (or its possible origin), the inclusion of the present
organisms and their possible origin (raw water, the growth of the network), their
belonging to groups that are difficult to avoidable. In the case of the occurrence of the living
organisms in waters secure disinfection is always necessary to give the
they were organisms. The groundwater is recorded mainly
the presence of surface water-bound organisms and organisms
indicative of impaired water quality. Underground water with an abundance of organisms
bound to the surface of the water must be considered as the water underground
influenced by the water surface (see explanatory note 1).
4. zahrnovanými under this indicator Organisms for the purposes of the Ordinance
means of cyanobacteria and all eukaryotic organisms (for example, algae, protozoa,
mikromycéty, rotifers, nematodes). Bacteria (with the exception of cyanobacteria) are
listed only in verbal description, but are not counted in the total number of
organisms. Microscopic findings of mass occurrence of organotrofních bacteria
(more than 100 individuals/ml) should be considered as exceeding the MH
indicators # 6 or # 7. Products of the metabolism of iron
bacteria are one of the abiosestonu.
5. Limit applies only to secure water disinfection. Live
organisms that contain chlorophyll to distinguish itself by using autofluorescence
chlorophyll. Others, if possible, by other characters, such as
in particular, the status of the movement, releasing energy.
6. If the supply zone cannot be for a small number of samples to determine whether the
This is an abnormal change, applies as the limit value of 200 cfu/ml.
7. For replacement supplies for water supplied in the air, water and
land-based transport and for water from the small nedezinfikovaných
resources, producing less than 5 m3 per day applies to the recommended value
500 cfu/ml.
8. If the supply zone cannot be for a small number of samples to determine whether the
This is an abnormal change, applies as the limit value 40 cfu/ml.
9. For replacement supplies for water supplied in the air, water and
land-based transport and for water from the small nedezinfikovaných
resources, producing less than 5 m3 per day, the recommended value in the
100 cfu/ml.
10. Value applies to the residual monomer concentration (substance),
calculated in terms of the content and the possible release of materials
(for example, pipelines) and objects that are used to modify, production
and distribution of drinking water, which are in contact with drinking water. The determination of the
in drinking water will be made only in the case where it is not possible to calculate and
the substance is given to the materials used may be present in the water.
Determination of chlorethenu (vinyl chloride), however, will also carry out new
source before putting into operation.
11. In the determination of benzene is necessary to monitor, if it is not indicated
the presence of the other aromatic hydrocarbons (toluene, XYLENES,
Ethylbenzene). The finding of these substances is necessary to pay close attention.
In the case of quantitative determination of findings shall be provided for substances
in the test report.
12. always and for new source, or where the findings Be
exceed 30% of the limit values.
13. Where is it possible without reducing the effectiveness of disinfection, it should
strive to achieve the lowest possible value.
14. Without abnormal changes. It may not be determined for supplying
less than 10 000 m3 of water a day.
15. Must comply with the condition that the sum of the ratios of the identified content
nitrate mg/l divided by 50 and the nitrite content in mg/l
split-3 was less than or equal to 1. The sum of the ratios of corresponding to its importance
the highest limit value. The content of nitrite in drinking water at the outlet of
the treatment plant shall be less than 0.1 mg/l.
16. Apply as a minimum value in the case referred to in § 3 (1). 1. for the
all of the water, where it is possible, should seek to
the achievement of the recommended values.
17. Without abnormal changes. It is not necessary to establish if it is determined
the contents of the TOC (total organic carbon).
18. free chlorine Content, chloritanů or ozone is determined only in
the case of the use of chlorine or chlorine-containing resources, carbon
chlorine dioxide or ozone in water treatment. For editing and
disinfection of the water. In the case of use of a bound of active chlorine (for example,
in the form of chloramines) for disinfection, paying for the total active chlorine
the limit value of 0.4 mg/l.
19. In cases where higher values of chloride are caused by geological
environment, with values up to 250 mg/l are considered to satisfy the requirements
of this order. For packaged drinking water artificially supplemented by mineral
agents apply the limit value of 250 mg/l.
20. Water should not act aggressively towards materials distribution
system, including plumbing. Assessment of the aggression is carried out
by TNV 75 7121 requirements on the quality of water being transported by pipeline.
21. in case of doubt, when the sensory evaluation is to be acceptable
consider the threshold numbers 1 and 2 in the determination of the quality according to ČSN EN 1622
waters. The determination of threshold odour number (TON) and the threshold number of taste
(TFN).
22. measured at 25 ° c.
23. In cases where higher values of manganese in raw water sources are
due to the geological environment, the values of manganese up to 0.10 mg/l
be deemed to conform to the requirements of this order, provided that the
There is no undue influence the organoleptic properties of water.
24. the exposure limit value is established on the basis of toxic action of copper and
applies to a sample of the drinking water taken from the appropriate sampling method
the tap so that the sample was representative of the average one-week
the amount of ingested by consumers. At concentrations above 100 µ g/l may
No changes to organoleptic properties of water. For the control of
quality of drinking water in accordance with § 4, the method of random sampling
during the working day, which lies in the abstraction of the first 1000 ml of water from the
tap (without purification of the faucet and drain water or without the prior
sampling of water on other indicators). If it is found in the
This collection of exceeding limit values, and if it is proved that this is
the influence of the internal tap water, the purpose of sampling for
determine the average concentration of the substance ingested by consumers during a single
of the week.
25. Is determined in drinking water prepared from surface water in the period when
You can expect an increased incidence of cyanobacteria. In the case of that person pursuant to § 3 (2).
2 of the Act shall indicate the appropriate steps to ensure that the possible occurrence of cyanotoxinů in
drinking water will be fixed so, and then will be taken effective measures to
the prevention of threats to public health, public health protection authority
the frequency of the determination of the limit or discarded.
26. The limit value applies to a sample of the drinking water taken appropriate
method of sampling from the tap so that the sample was representative of the
the average one-week amount ingested by consumers. For the control of
quality of drinking water in accordance with § 4, the method of random sampling
during the working day, which lies in the abstraction of the first 1000 ml of water from the
tap (without purification of the faucet and drain water or without the prior
sampling of water on other indicators). If it is found in the
This collection of exceeding limit values, and if it is proved that this is
the influence of the internal tap water, the purpose of sampling for
determine the average concentration of the substance ingested by consumers during a single
of the week.
27. Pesticides shall mean organic insecticides, herbicides, fungicides,
nematocidy, acaricides, algaecides, rodenticides, slimicidy, related
products (e.g. growth regulators) and their relevant metabolites,
breakdown or reaction products. Only pesticides shall be established with the
likely in the given source, the fact of not ciency
They shall be provided.
28. The limit value applies to each individual pesticide except
Aldrin, dieldrin, heptachlor and heptachlorepoxidu, where the limit
the value of 0.03 µ g/l.
29. Limit value applies to the sum of the individual laid down and
quantitatively detected ciency. If the substance is not detected
quantitatively, the sum is attributed to zero.
30. Limit value applies to the sum of the quantitatively defined
the following specific substances: benzo [b] fluoranthene,
benzo [k] fluoranthene, benzo [ghi] perylen, indeno [1, 2, 3-cd] pyrene. If they are
determined other substances of polyaromatic hydrocarbons,
the value included in the indicators of PAU.
31. For packaged drinking water, non-carbonated with carbon dioxide and for drinking water
being shipped containers can be accepted from pH 4.5; for bottled
drinking water that is naturally or artificially enriched with rich carbon
dioxide, the minimum value may be even lower. For water with naturally lower
pH, pH value 6.0 to 6.5 be regarded as satisfying the requirements of this
the Decree provided that the water does not act aggressively towards materials
of the distribution system.
32. Regarding water disinfected with salts of silver and the waters of maintained
equipment containing silver.
33. The sum of the concentrations of tetrachlorethenu and trichlorethenu shall not
exceed 10 µ g/l.
34. Limit value applies to the sum of the quantitatively detected
concentrations of trichlormethanu (chloroform), tribrommethanu (bromoformu)
dibromchlormethanu and bromdichlormethanu. If the substance is not detected
quantitatively, the sum is attributed to zero. Where this is possible without
reducing the effectiveness of disinfection, it should seek to achieve
the lowest values.
35. In cases of modification of surface water treatment plants would be water coming out of
not exceed 1.0 ZF. The unit is the following according to the methods used
determination: ZF ZF (t) or (n), where t stands for turbidimetrickou and n
nefelometrickou method.
36. In cases where higher values in the source of the raw values are
due to the geological environment, the values of iron up to 0.50 mg/l
be deemed to conform to the requirements of this order, provided that the
There is no undue influence the organoleptic properties of water
or in the form of occasional visible turbidity.
Č. 2
Microbiological, biological, physical, chemical and organoleptic
hot water indicators according to § 3 (2). 3 of the Act and their health
limits
+---+----------------------------+------------+--------------+---------------------------+------------------+----------------+
|č. | pointer | the symbol | Unit | limit | limit type | explanatory notes |
| | | | +-------------+-------------+ | |
| | | | | hot water | hot water | | |
| | | | | made of | made of | | |
| drinking water water | other than | | |
| | | | | | from drinking water | | |
+---+----------------------------+------------+--------------+-------------+-------------+------------------+----------------+
| 1 | Legionella spp. | | Cfu/100 ml | 100 | 100 | MH | 1.2 |
+---+----------------------------+------------+--------------+-------------+-------------+------------------+----------------+
| 2 | Legionella spp. | | Cfu/100 ml | 0 | 0 | NMH | 1.3 |
+---+----------------------------+------------+--------------+-------------+-------------+------------------+----------------+
| 3 | the numbers of colonies at 36th. (C) | | Cfu/ml | 200 | 200 | MH | 1 |
+---+----------------------------+------------+--------------+-------------+-------------+------------------+----------------+
| 4 | Escherichia coli | | Cfu/100 ml | - | 0 | NMH | 1 |
+---+----------------------------+------------+--------------+-------------+-------------+------------------+----------------+
| 5 | Pseudomonas aeruginosa | | Cfu/100 ml | - | 0 | MH | 1 |
+---+----------------------------+------------+--------------+-------------+-------------+------------------+----------------+
| 6 | atypical Mycobacteria | | Cfu/1000 ml | - | 100 | MH | 1.4 |
+---+----------------------------+------------+--------------+-------------+-------------+------------------+----------------+
| 7 | color | | mg/l Pt | 20 | - | MH | 1 |
+---+----------------------------+------------+--------------+-------------+-------------+------------------+----------------+
| 8 | total organic carbon | TOC | mg/l | 5.0 | 5.0 | MH | 1.5 |
+---+----------------------------+------------+--------------+-------------+-------------+------------------+----------------+
| 9 | chemical oxygen demand | COD-Mn | mg/l | 3.0 | 5.0 | MH | 1.6 |
| | (permanganate) | | | | | | |
+---+----------------------------+------------+--------------+-------------+-------------+------------------+----------------+
| 10 | chlorine free | | mg/l | 1.0 | 1.0 | MH | 1.7 |
+---+----------------------------+------------+--------------+-------------+-------------+------------------+----------------+
| 11 am | phosphates | | mg/l | 3.5 | 3.5 | MH | 1.8 |
+---+----------------------------+------------+--------------+-------------+-------------+------------------+----------------+
| 12 | chlorine dioxide | | mg/l | 0.8 | 0.8 | MH | 1.7 |
+---+----------------------------+------------+--------------+-------------+-------------+------------------+----------------+
| 1 | odor | | | acceptable | acceptable | MH | 1.9 |
| | | | | for | for | | |
| | | | | the customer | the customer | | |
+---+----------------------------+------------+--------------+-------------+-------------+------------------+----------------+
| 14 | pH | Ph | | 6.5-9.5 | 6.0-9.5 | MH | 1.10 |
+---+----------------------------+------------+--------------+-------------+-------------+------------------+----------------+
| 15 | temperature | | St. C | 55 | 55 | DH | 1.11 |
+---+----------------------------+------------+--------------+-------------+-------------+------------------+----------------+
| 16 | trihalomethany | THM | µ g/l | 100 | 100 | NMH | 1.12 |
+---+----------------------------+------------+--------------+-------------+-------------+------------------+----------------+
| 17 | turbidity | | ZF (t, n) | 5 | 5 | MH | 1.13 |
+---+----------------------------+------------+--------------+-------------+-------------+------------------+----------------+
Explanatory notes:
1. sampling for the determination of indicators of warm water (with the exception of targeted
the epidemiological investigation) is performed after the forgiveness of water for 1
minutes.
2. the Limit of the limit value applies to health care and accommodation
device for hot water supplied to the showers of artificial or natural
swimming pools and drinking water used for the production of hot water; for the other
objects are valid as the recommended value that you must use the
technical measures to strive for.
3. the Limit as the maximum limit value applies to hospitals, where
immunocompromised patients are located, such as
the Department of transplantation, nedonošenecká, anestezioresuscitační,
dialysis, Oncology, hematoonkologie, intensive care units.
4. Limit value applies to the sum of the numbers of the following species
atypical Mycobacteria: Mycobacterium chelonae, m. kansasii, m. avium,
M. intracellulare, m. scrophulaceum, m. xenopi, m. fortuitum. A pointer to the
is determined only for the production of hot water from a surface water source
or mine water and central heating, and divorce. Central heating
means the heating of water in one place for the entire building or multiple buildings.
5. A pointer need not be determined if it is determined by the contents of the COD-Mn
(chemical oxygen demand).
6. A pointer need not be determined if it is determined by the contents of the TOC (total
organic carbon).
7. Does not apply to controlled impact disinfection, which can also be used
higher doses of disinfectant on the condition that using
the organisational arrangements will ensure that water will not be so treated
used for human consumption (drinking and bathing). Free chlorine content and
chlorine dioxide is determined only when the use of these substances
in water treatment.
8. Expressed as PO43-. The pointer is fixed only in the case that the
hot water is added the chemical preparation based on phosphorus.
9. In case of doubt when a sensorial determination of acceptable
consider the threshold numbers 1 and 2 in the determination of the quality according to ČSN EN 1622
waters. The determination of threshold odour number (TON) and the threshold number of taste
(TFN).
10. in the case of water with a lower pH is naturally the pH value 6.0 to 6.5 considered
meeting the requirements of this order, provided that the water does not affect
aggressively towards materials distribution system, including internal
tap water.
11. after odtočení hot water temperature should not drop below 50th. (C)
(optimally over 55th. (C)) to minimize the development of Legionella in
distribution of water.
12. Limit value applies to the sum of the quantitatively detected
concentrations of trichlormethanu (chloroform), tribrommethanu (bromoformu)
dibromchlormethanu and bromdichlormethanu. If it is possible, without
reduced the effectiveness of disinfection, aims at achieving the lowest possible value.
The pointer is set only if disinfection of water with chlorine
of the product.
13. The unit is stated in accordance with the method of determination: ZF ZF (t) or (n),
where (t) means turbidimetrickou and (n) nefelometrickou method.
Č. 3
Microbiological, biological, physical, chemical and organoleptic
indicators of hot water produced from the individual for purposes of personal resources
sanitation workers and their limits
And.
The microbiological requirements
------------------------------------------------------------------
A Pointer To A Unit Limit Endnotes
------------------------------------------------------------------
atypical Mycobacteria cfu/1000 ml 100 1.3
Escherichia coli cfu/100 ml
Legionella spp. Cfu/100 ml 100 2.3
colony count 37 ° c 1 200 cfu/ml
Pseudomonas aeruginosa cfu/100 ml
Staphylococcus aureus cfu/100 ml
------------------------------------------------------------------
(B).
Physical and chemical requirements
------------------------------------------------------------------
A Pointer To A Unit Limit Endnotes
------------------------------------------------------------------
chemical consumption of oxygen mg/l 5.0
(permanganate)
the smell of acceptable 4
for the customer
pH 6 - 9,5
trihalomethanes µ g/l 100
free chlorine mg/l 0.1-1.0 5
Visual assessment 6
clouding of the ZF (t, n) 5 7
------------------------------------------------------------------
Explanatory notes:
1. Limit value applies to the sum of the following types of atypical
Mycobacteria: Mycobacterium chelonae, m. kansasii, m. avium, M.
intracellulare, m. scrophulaceum, m. xenopi, m. fortuitum.
2. Testing for the presence of Legionella spp. is not required,
If the heating is carried out at the place of consumption, such as in particular flow
heater.
3. Indicators are set only for the production of hot water from the source
surface water or water, with central heating and a divorce.
4. In case of doubt when a sensorial determination of acceptable
consider the threshold numbers 1 and 2 in the determination of the quality according to ČSN EN 1622
waters. The determination of threshold odour number (TON) and the threshold number of taste
(TFN).
5. the determination is carried out at the place of sampling. Content of free and bound
chlorine or another disinfectant is determined only in
the case of the use of substances containing chlorine in water treatment.
6. For example, the absence of foam on the surface coating or colour.
7. in the Protocol, the result shall indicate the unit according to the methods used
determination: ZF ZF (t) or (n), where (t) means turbidimetrickou and (n)
nefelometrickou method.
Č. 4
A. the minimum annual frequency of sampling and analysis of samples of drinking water range
(excluding bottled water)
--------------------------------------------------------------------------------------------------
The population of the water volume is sold/distributed the annual number of samples of the annual number of samples
supply zone or produced for a fractional factorial design analysis for a full analysis of the
[§ 2 (b), (d))] the supply zone
When daily consumption (m3/day)
200 l per person *) *) *)
--------------------------------------------------------------------------------------------------
=< 50 =< 10 1 1 za dva roky
--------------------------------------------------------------------------------------------------
> až 50 =< 100 > 10 až =< 20 2 1
--------------------------------------------------------------------------------------------------
> až 100 =< 500 > 10 až =< 100 3 1
--------------------------------------------------------------------------------------------------
> 500 až =< 5 000 > 100 až =< 1 000 4 2
--------------------------------------------------------------------------------------------------
> 5 000 až =< 50 000 > 1 000 až = < 10 000 1 + 1 for every 3 300 m3/day (including unfinished) 4 of total--------------------------------------------+ 3 for every 1 000---------------------------> up to 50 000 = < 500 000 > 10 000 up to = < 100 000 m3/day (including 3 unfinished + 1 per 10 000 of the total) m3/day (including unfinished from the total)------------------------------------------------------------------------> > 100 000 10 500 000
+ 1 for every 25 000
m3/day (including
unfinished
of the total volume)
--------------------------------------------------------------------------------------------------
Explanatory notes to table:
*) Does not correspond to the volume of the produced water of the population according to the values
listed in the table, it is considered a crucial number of supplied
of the population. If the population served, in particular due to the seasonal
recreation, fluctuate and cannot be clearly determined, it is taken as
the basis for the determination of the frequency of the average volume of produced water (m3/day)
the annual period.
**) Example calculation for the volume of water is sold/distributed: 5200 m3/day is the number of
krácených analyses of 22 [4 + (6 x 3)] and the number of full analysis 3 [1 + (2 x
1)].
(B). the minimum annual frequency of sampling and the analyses of the samples packed range of drinking
water put into bottles or containers for the purpose of sale
---------------------------------------------------------------------------
The volume of water a day produced the annual number of samples of the annual number of samples
for sale in bottles for a fractional factorial design analysis for a full analysis of the
or containers in m3
---------------------------------------------------------------------------
=< 10 12 1
-------------------------------------------------------------------------
> 10 až = 60 2 na každých 5 m3 1 na každých 100 m3
(including unfinished) (including unfinished)
of the total volume the total volume
---------------------------------------------------------------------------
The volumes are calculated as averages taken over a calendar year.
Č. 5
The minimum range of analyses of the samples of drinking water
1. A fractional factorial design analysis
The purpose of krácených is to receive regular information analyses on stability
water resources and the effectiveness of water treatment, especially (if disinfection
implemented), microbiological quality and organoleptic properties
water, in order to determine compliance with the limit values
laid down in this decree or authority to protect public health on the
under the law.
A fractional factorial design analysis consists at least of the following indicators:
------------------------------------------------------------------
No indicator explanations
------------------------------------------------------------------
1 Escherichia coli
------------------------------------------------------------------
2 coliform bacteria
------------------------------------------------------------------
3 Clostridium perfringens 1
------------------------------------------------------------------
4 the number of colonies at 22 ° C
------------------------------------------------------------------
5 number of colonies at 36 ° C
------------------------------------------------------------------
6 of Pseudomonas aeruginosa 2
------------------------------------------------------------------
7 microscopic image-abioseston 3
------------------------------------------------------------------
8-number of microscopic organisms 3
------------------------------------------------------------------
9 microscopic image-living organisms 3
------------------------------------------------------------------
10 ammonium ions
------------------------------------------------------------------
11 color
------------------------------------------------------------------
12 the nitrates
------------------------------------------------------------------
13 nitrites
------------------------------------------------------------------
14 aluminum 4
------------------------------------------------------------------
15 chlorine free 5
------------------------------------------------------------------
16 chemical oxygen demand-permanganate
(or total organic carbon)
------------------------------------------------------------------
17 the taste
------------------------------------------------------------------
18 conductivity
------------------------------------------------------------------
19 manganese 6
------------------------------------------------------------------
20 the smell
------------------------------------------------------------------
21 the pH
------------------------------------------------------------------
22 turbidity
------------------------------------------------------------------
23 iron
------------------------------------------------------------------
24 temp
------------------------------------------------------------------
Explanatory notes to table:
1. Shown only in the drinking water of maintained directly from the water
surface or groundwater that are affected by surface water.
2. Is determined only for bottled drinking water.
3. In case if the source is surface water. If the source is
underground water, shown only in the case of the influence of the underground resources
the surface water and the indication of the growth of organisms in the network.
4. Is determined only when the use of flocking reagent based on aluminium.
5. Is determined only when the use of devices containing chlorine.
In the case of use of a bound of active chlorine (e.g. in the form of chloramines)
for disinfection, is determined the total active chlorine. When you use another
the chemical disinfectant residual quantity shall be determined
the relevant active substance.
6. only in the case where the manganese from the water when you edit
deleted.
2. A full analysis of the
To complete the analyses is to acquire the information needed to determine whether
limit values for all the parameters laid down in this decree or to
pursuant to § 4 paragraph 2. 6 of Act No. 258/2000 Coll., as amended by Act No. 274/2003
Coll. public health authority are complied with.
The subject of a full analysis of all the parameters listed in annex No. 1.
(taking into account the comments of those characteristics listed in that annex)
with the exception of cases, when the body of public health protection provided for
on the basis of the act otherwise.
Č. 6
Requirements for analytical methods
A. parameters for which methods of analysis are specified
---------------------------------------------------------------------------------
A pointer to a method of an alternative method
---------------------------------------------------------------------------------
Escherichia coli ČSN EN ISO 9308-1 DIN EN ISO 9308-2
----------------------------------------------
coliform bacteria ČSN EN ISO 9308-1
---------------------------------------------------------------------------------
intestinal enterococci ČSN EN ISO 7899-2
---------------------------------------------------------------------------------
Pseudomonas aeruginosa EN 16266
---------------------------------------------------------------------------------
the numbers of colonies at 22 ° C ČSN EN ISO 6222
and 36 ° C
---------------------------------------------------------------------------------
microscopic image of CSN and 757712
CSN 757713
---------------------------------------------------------------------------------
Clostridium perfringens see below
(including spores)
---------------------------------------------------------------------------------
atypical Mycobacteria, see the procedure below
---------------------------------------------------------------------------------
Legionella spp. ČSN ISO 11731 and
CSN 11731-2
---------------------------------------------------------------------------------
Staphylococcus aureus, ČSN EN ISO 6888-1
(no change A1) *)
---------------------------------------------------------------------------------
*) in point 4.1. the standards shall apply instead of the vaccination technique of membrane
100 ml of sample water filtration
1.
Clostridium perfringens (including spores):
Assay procedure:
Membrane filtration followed by anaerobic cultivation
the membrane on m-CP agar at 44 +/-1 ° C for 21 +/-3 hours.
Counting the frequency of neprůsvitných yellow colonies whose coloring
goes into the pink or red after exposure to vapours of ammonia for
20 to 30 seconds.
M-CP agar has this structure:
Basal medium:
TSC 30 g
20 g yeast extract
sacharoza 5 g
L-cysteine hydrochloride 1 g
MgSO4. 7 H2O 0.1 g
bromkrezolová Magenta red 40 mg
agar 15 g
water 1 000 ml
These components basic medium, dissolve, adjust the pH to 7.6 and
media is for a period of 15 minutes in the autoclave at 121 degrees C Then
the media, allow to cool and add the following ingredients:
D-cycloserin 400 mg
polymyxin B sulfate, in the form of 25 mg
indoxyl-Beta-D-glucoside (in advance
dissolved in 8 ml of sterile water) 60 mg
the sterile-filtered 0.5% phenolphthalein
difosforečnanový solution 20 ml
the sterile-filtered 4.5% FeCl3. 6 H2O 2 ml
2.
Atypical Mycobacteria:
For the determination of atypical Mycobacteria can use one of the following
methods:
and)
Method with sodium laurylsulfátem:
Assay procedure:
Membrane filtration (0.45 micrometre filter porosity) is processed with the
using a water pump 0.5 l of water. Utilizing sterile technique, remove the filter
with tweezers and scissors, cut 6-8 strips, which moves to the
centrifuge containers with 20 ml of sterile distilled water and 10 vytřepou
minutes on the shaker. The solution is then poured into another container and
centrifuge for 20 minutes at 2000 g to 3000 g. pour off the Supernatant and
the sediment is dekontaminuje 3 ml of 3% with 1% sodium laurylsulfátu
NaOH. After 20 minutes of shaking the Shaker, add 25 ml of sterile
distilled water and centrifuged again in 2000 to 3000 g for 20
minutes. After casting, the supernatant is to add approximately 2 ml of the sediment
saline solution, so that the resulting volume of the sample in the test tube
This aligns with a specific value, which will serve to calculate the quantity.
After homogenizing the sample pipette, given in the amount of 0.25 ml after six
egg of soil (3 Löwensteinovy-3 Jensenovy and Ogawovy soil). Always the two of
inoculated soils (1 l.-j., and 1 Ogawova) are incubated at 30th. (C), 37
St. (C) and 42nd. C. result is deducted for 1, 3, 6 and 9 weeks, for the determination of
the numbers shall apply the results after 9 weeks of incubation. In the case of that strain
does not grow at a certain temperature, the results are calculated only from the temperature
incubation in which the strain is able to grow (some Mycobacteria grow
at a temperature below 37th. C). For the grown-up colony records
their morphology and pigmentation and microscopically with Ziehl-Neelsen
dyeing verifies their acidorezistence. In the case of positivity is done
mycobacteriological laboratories in specialist species
identification of the isolated tribe.
The number of Mycobacteria on 1 l of water shall be calculated in relation to the volume of
filtered water, the volume of the sample after centrifugation, the number vaccinated
platters and the size vaccinated inoculum.
For decontamination of water you can also use the chlorhexidine. To sediment
Add 10 ml of an aqueous solution of 0.2% chlorhexidine, shake vigorously by hand and
leaves 24 hours at room temperature. The next day, after centrifugation, and after
wash the sediment 10 ml sterile distilled water to sediment after the next
centrifugation at 2000 g 3000 g to processes as well as when the method with the
sodium laurylsulfátem.
(b))
Method with cetylpyridinium chloride (CPC):
Assay procedure:
Membrane filtration (0.45 micrometre filter porosity) is processed with the
using a water pump 1 litre of water. For the decontamination of water sample
It's the solution of the CPC in the resulting concentration of 0.005%, which is prepared
in sterile distilled water.
Decontamination of the sample water is performed in the following way: 1 part
0.05% solution of CPC is added to 9 parts of the sample water. After the conclusion of the bottle
its contents shake for 30 seconds, then leave to stand for 30 minutes.
Then immediately executes the filtration through cellulose membrane filter of
diameter of 50 mm and a pore size of 0.45 mikrom.
The filter is propláchnut after their filtration 500 ml of sterile distilled
water to remove residues of the CPC.
The filter is removed and placed in a sterile tweezers, sterile 30 ml plastic
the container to which are added to the 2 ml of sterile distilled water. The Vortex briefly
It is a plastic container protřepána for 10 seconds. On the surface of the soil in the
Petri dishes is inokulována after 0.2 ml suspension and 0.1 ml is used to
smear on a glass slide for staining method by Ziehl-Neelsena.
Culture on a Petri dish with the Löwenstein-Jensen land and one
Petri dish with Ogawovou land at 30th. C, 37th. (C) and 42nd. (C).
The evaluation is carried out once a week to 9 weeks of incubation.
The log records the results on each of the soils detected:
the number of colonies in the soil, while the massive growth in the sector with representative
the increase, the morphology of colonies of microscopic verification grown colonies.
If growth is detected more Mycobacterial species, the number of
each species separately. To identify is removed 10 colonies, of which
the subculture is prepared on solid ground (Löwenstein-Jensenově or
Ogawově) to perform identification tests. Some suspected
colonies of Mycobacteria can be performed directly from the GENE Probe tests
primokultury of sufficient seed. The final evaluation of growth is
done after 9 weeks of incubation, as well as the conclusion of the negative
examination (for negative will be extended to 12 weeks incubation). If in the
during the six-week incubation they all inoculated soil
non-specific bacterial flora, sealed the result earlier.
For the determination of the numbers shall apply the results after 9 weeks of incubation (or after
12 weeks of incubation, if after 9 weeks tests negative). In
If the strain does not grow at a certain temperature, the results are calculated only from the
the data of the temperature of incubation, during which the strain is able to grow. The numbers of
colonies of Mycobacteria to 1 litre of water shall be calculated in relation to the volume of
filtered water, the volume of the sample in the vytřepávání filter, the size of the
vaccinated in the inoculated seed and the number of platters.
(B) indicators for which set out the requirements of the method
----------------------------------------------------------------------------------------------
A pointer to the veracity of the precision of the detection limit of the explanatory notes
in% limit% limit% limit
values values values
pointer to pointer
(endnote 1) (endnote 2) (explanatory note 3)
----------------------------------------------------------------------------------------------
Acrylamide 4
----------------------------------------------------------------------------------------------
ammonium ions 10 10 10
----------------------------------------------------------------------------------------------
antimony 25 25 25
----------------------------------------------------------------------------------------------
arsen 10 10 10
----------------------------------------------------------------------------------------------
color 25 25 25
----------------------------------------------------------------------------------------------
benzene 25 25 25
----------------------------------------------------------------------------------------------
benzo [a] pyrene 25 25 25
----------------------------------------------------------------------------------------------
beryllium 25 25 25
----------------------------------------------------------------------------------------------
BOR 10 10 10
----------------------------------------------------------------------------------------------
bromates 25 25 25
----------------------------------------------------------------------------------------------
total organic carbon 10 10 10
----------------------------------------------------------------------------------------------
1.2-dichloroethane 25 25 25
----------------------------------------------------------------------------------------------
nitrates 10 10 10
----------------------------------------------------------------------------------------------
nitrites 10 10 10
----------------------------------------------------------------------------------------------
epichlorohydrin 4
----------------------------------------------------------------------------------------------
fluoride 10 10 10
----------------------------------------------------------------------------------------------
aluminum 10 10 10
----------------------------------------------------------------------------------------------
magnesium 10 10 10
----------------------------------------------------------------------------------------------
chemical oxygen demand 25 25 25
permanganate
----------------------------------------------------------------------------------------------
chlorine free 10 10 10
----------------------------------------------------------------------------------------------
chlorethen (vinyl chloride) 4
----------------------------------------------------------------------------------------------
chlorides 10 10 10
----------------------------------------------------------------------------------------------
chloritany 25 25 25
----------------------------------------------------------------------------------------------
Chrome 10 10 10
----------------------------------------------------------------------------------------------
a taste 5
----------------------------------------------------------------------------------------------
cadmium 10 10 10
----------------------------------------------------------------------------------------------
conductivity 10 10 10
----------------------------------------------------------------------------------------------
cyanide total 10 10 10 6
----------------------------------------------------------------------------------------------
manganese 10 10 10
----------------------------------------------------------------------------------------------
copper 10 10 10
----------------------------------------------------------------------------------------------
microcystin-LR 25 25 25
----------------------------------------------------------------------------------------------
nickel 10 10 10
----------------------------------------------------------------------------------------------
lead 10 10 10
----------------------------------------------------------------------------------------------
ozone 10 10 10
----------------------------------------------------------------------------------------------
the smell of 5
----------------------------------------------------------------------------------------------
pesticidal substances 25 25 25 7
----------------------------------------------------------------------------------------------
pesticidal substances total 8
----------------------------------------------------------------------------------------------
polycyclic aromatic 25 25 25 9
hydrocarbons
----------------------------------------------------------------------------------------------
reaction of water 10
----------------------------------------------------------------------------------------------
Mercury 20 20 20
----------------------------------------------------------------------------------------------
Selenium 10 10 10
----------------------------------------------------------------------------------------------
sulfate 10 10 10
----------------------------------------------------------------------------------------------
sodium 10 10 10
----------------------------------------------------------------------------------------------
Silver 15 15 15
----------------------------------------------------------------------------------------------
tetrachlorethen 25 25 25 11
----------------------------------------------------------------------------------------------
trihalomethany 25 25 25 12
----------------------------------------------------------------------------------------------
trichlorethen 25 25 25 11
----------------------------------------------------------------------------------------------
trichloromethane (chloroform) 25 25 25
----------------------------------------------------------------------------------------------
calcium 10 10 10
----------------------------------------------------------------------------------------------
calcium and magnesium 10 10 10
----------------------------------------------------------------------------------------------
cloudiness 25 25 25 13
----------------------------------------------------------------------------------------------
Iron 10 10 10
----------------------------------------------------------------------------------------------
The analytical method used must be at least able to provide
the concentration of the limit of detection and the limit values of the level
indicators are provided for trueness and precision. Whatever the sensitivity of the
the method of analysis used, the result must be expressed
at least the same number of decimal places as specified in the limit
the values of the indicators in part B of annex 1.
Explanatory notes to table:
1. The truth is the tightness of the conformity between the average value obtained from the
a large number of measurement results and the accepted reference value.
2. Precision is the tightness of the conformity between independent test results
obtained under specified conditions in advance. Precision reflects the degree
the variance of an observation about the mean. The precision depends only on the
distribution of random errors and no relation to the real value. Opinion on the
precision can be correlated to any set of measurements made
under the experimental conditions, which can be chosen arbitrarily
(repeatability, reproducibility). Precision measurement file can
be expressed quantitatively, of any of the selection characteristics
the variance, such as the sample standard deviation.
3. The detection limit of the analytical procedure is given the least amount of
analyte in a sample which can be detected (error when the specified value
I. and II. kind).
4. Characteristics of the method are not fixed. The pointer value is
checks by using the specifications of the product which contains the substance
(quantity of substance present in the material or released).
5. The characteristics of the method are not fixed.
6. The method should determine total cyanide in all forms of content.
7. Characteristics of the methods apply to each individual pesticide and will always
depend on the nature of the pesticide. It is currently not required
the boundaries, of the evidence (the detection limit) for all pesticides can be reached; about
achieving this standard must be systematically sought.
8. See requirements for individual pesticides.
9. The characteristics of the methods apply to the individual substances specified (see
the explanatory notes to annex 28 No. 1) at the level of 25% of the exposure limit values
the pointer.
10. the characteristics laid down for the determination of the concentration of hydrogen
ion (pH) lies in the fact that the analytical method used must be
capable of measuring concentrations equal to the limit values of the level indicators with
trueness of 0.2 pH unit and a precision on 0.2 pH unit.
11. The characteristics of the methods apply to the individual substances specified
(TCE, PCE) at the level of 50% of the limit values of the indicator.
12. The characteristics of the methods apply to the individual substances specified
(see the explanatory notes to Annex 32 No. 1) at the level of 25% of the exposure limit values
indicators, with the exception of pointers, trichloromethane, for which they are
established separate requirements.
13. Apply to the limit value of 1.0 ZF.
1) Council Directive 98/83/EC on the quality of water intended for human consumption.
2) § 3 (1). 1 of the law No. 258/2000 Coll., on the protection of public health and the
changes to some related laws, as amended by Act No. 274/2003 Coll.
Council Directive 98/83/EC on the quality of water intended for human consumption.
3) Decree No. 292/1997 Coll., on the requirements of the health
bottled water and how to edit them, as amended by Decree No. 241/1998
Coll. and Decree No. 465/2000 Coll.
4) § 3 (1). 4, § 3a paragraph 2. 1 to 7 and 84 paragraph. 1 (b). e) of Act No.
258/2000 Coll., as amended.
5) § 3 (1). 2 Act No. 258/2000 Coll., as amended.
6) Decree No. 307/2002 Coll., on radiation protection.
7) § 2 (2). 1 of the law No. 274/2001 Coll. on water supplies and sewerage Act for
public use and on amendments to certain acts (the Act on water supply and
sewerage networks).
8) for example, ČSN ISO 5667-5 quality of the water. Sampling, part 5: guidelines
for the sampling of drinking water and water used in food production and
drinks. ČSN EN ISO 5667-3 quality of the water. Sampling, part 3: guidelines for
the manufacture and handling of samples. ČSN ISO 5667-14 quality of the water.
Sampling, part 2: guidance on sampling of water quality assurance and
manipulation with them.
9) § 2 (b). n) Act No. 110/1997 Coll. on foodstuffs and tobacco
products and amending and supplementing certain related laws, as amended by
amended.
section 2 (a). and) Decree No. 137/2004 Coll. on hygienic requirements for
catering services and personal policy and operational hygiene activities
It has been severe.
10) EN ISO 17994 (75 7016)-water quality-the criteria for the detection of
the equivalence of two microbiological methods, section 7.2.
