1/2008 Sb.
GOVERNMENT REGULATION
of 12 October. December 2007
on the protection of health against non-ionizing radiation
Change: 106/2010 Sb.
The Government directs pursuant to § 108 paragraph. 3 of Act No. 258/2000 Coll., on the protection of
public health and amending certain related laws, section 21 (a).
a) Act No. 309/2006 Coll., to regulate other requirements
safety and health at work in labor relations and
ensure the safety and health activities or the provision of
services outside of the employment relationships Act (to ensure further conditions
safety and health at work), and for the implementation of Act No.
262/2006 SB., labour code, as amended:
PART THE FIRST
THE SUBJECT OF THE EDIT
§ 1
(1) this regulation incorporates the relevant provision of the European
Community ^ 1) and edits
and non-ionizing radiation) exposure limits, methods and the way they
assessment and evaluation and the minimum range of measures to protect the health
work,
(b) the maximum permissible exposure values) of individuals in the household
the environment (hereinafter referred to as "other persons") radiation in the neionizujícímu
frequency range from 0 Hz to 3.1011 Hz, method of detecting "to detect and
reviews,
(c) the risk evaluation of non-ionizing radiation) in the frequency range from 0 Hz
up to 1, 7.1015 Hz
(d)) the way a laser into classes and their descriptions, how to measure
laser warning text or signalling, range technical data
the documentation necessary for the protection of the health of the laser and the minimum technical
and organizational measures to limit exposure to radiation, lasers, e) cases
mark places where exposure may exceed the maximum permitted
values, alert,
f) minimum information for an employee health
the work associated with exposure to radiation neionizujícímu.
(2) Where this regulation lists the highest permissible exposure value
neionizujícímu radiation in relation to employees, hygienic means
non-ionising radiation limit under the Act to ensure further the
safety and health at work ^ 2).
(3) this regulation also applies to legal relations relating to the protection
health in the activities or the provision of services outside of the labor relations
taking into account the conditions of the activities or the provision of services
and their range ^ 2).
(4) this Regulation shall not apply to the use of non-ionizing sources
radiation, in which the patient is exposed to radiation at neionizujícímu
the provision of health care.
PART TWO
CONDITIONS FOR THE PROTECTION OF HEALTH AT WORK AND IN THE ACTIVITIES OR THE PROVISION OF
SERVICES OUTSIDE OF THE LABOR RELATIONS
§ 2
Maximum permissible exposure values neionizujícímu radiation
(§ 7 paragraph 7 of Act No. 309/2006 Coll.)
(1) under this regulation, means a
and non-ionizing radiation) static magnetic and time-variable
Electric, magnetic and electromagnetic fields and radiation with frequencies
from 0 Hz to 1 Hz, 7.1015
(b)) the highest allowed limit values for exposure, which
are based directly on established health effects and of data on their
the biological action of and the compliance with which ensures that persons who
neionizujícímu are exposed to radiation are protected against all known
adverse health effects,
c) reference values the size of directly measurable parameters of radiation
in the frequency range from 0 Hz to 3.1011 Hz, which are the intensity of the
the intensity of the electric field, magnetic field, magnetic induction and
radiant flux density.
(2) the reference values and limit values are laid down in
Annex 1 to this regulation.
(3) when exceeding the reference values shall be calculated or
measurement pursuant to § 3 (2). 1. compliance with the reference values ensures that the
the maximum levels are not exceeded.
§ 3
The procedure of the employer in determining and evaluating the maximum permitted
the values of the
(§ 7 paragraph 7 of Act No. 309/2006 Coll. and section 102, paragraph 3, of the labour code)
(1) comply with the maximum permitted levels of modified Jet
density induced in the body, specific performance and absorbed in the body
radiant flux density is determined by calculation or measurement
and) on models (fantómech) of the human body or its parts, or
(b)) the values of the intensity of electric field, the magnetic induction, density
radiant flux, the contact and induced current flowing any of
the arm, noted for the assessed the situation, and their comparison with
the reference levels of the modified in annex No. 1 to this
Regulation, tables 4 to 11.
(2) the reference level may be exceeded if the way
referred to in paragraph 1 (b). and) or (b)) has shown that are not exceeded
the maximum permitted values.
(3) the calculation or measurement referred to in paragraph 1 or pursuant to paragraph 4 of the evaluation does not have to
the employer shall perform, if the work is a source of non-ionizing radiation
carried out at the workplace, accessible to the public, if the employer already
evaluation of exposure to other people's neionizujícímu radiation according to §
7, from which it follows that workers are complied with the highest
permissible values and security risks are excluded.
§ 4
Non-ionising radiation risk assessment
(§ 102, paragraph 4, of the labour code)
When assessing the risk of non-ionizing radiation in the frequency range from 0
Hz to Hz 3.1011 takes account mainly of the employer
and intensity) to the frequency spectrum, duration and type of exposure,
(b)) to the highest admissible values and the reference levels referred to in annex
No 1 to this regulation,
(c)) to all of the effects on the health and safety of particularly vulnerable
workers, in particular of juvenile workers and pregnant workers,
(d)) to any indirect effects, such as
1. interference electronic and medical devices and equipment including
pacemakers and other implanted medical electronic
the device,
2. risks associated with the ejection of ferromagnetic objects by
static magnetic fields with a magnetic induction of more than 3 mT,
3. risk of ignition electrically operated detonators
4. fire and explosion due to ignition of the flammable materials sparks
caused by indukovanými or contact currents or jiskrovými
discharge,
e) existence of replacement equipment designed to reduce the exposure
electromagnetic fields,
(f)) to appropriate information obtained from health surveillance,
carried out preventive care devices including published
information,
g) exposure from multiple sources,
(h)) to the current exposure to fields of different frequencies.
§ 5
The minimum range of measures to protect the health of workers
(§ 7 paragraph 7 of Act No. 309/2006 Coll.)
(1) the employee's exposure to electric or magnetic fields, and
electromagnetic radiation with frequencies from 0 Hz to the values
3.1011 Hz shall be limited so that the current density induced modified
in the body, specific performance and in the body of the absorbed radiant flux density
electromagnetic waves with frequencies higher than 1010 Hz falling on the body
or in part, does not exceed the maximum permitted levels provided for in the
Annex 1 to this regulation.
(2) the exposure of workers to radiation at a frequency of neionizujícímu from the value
3.1011 Hz to 1, 7.1015 Hz (infra-red, visible and
ultraviolet radiation) from other than natural resources is limited to
radiant flux density and the density of radiant energy falling on the body or
on his part does not exceed the maximum permitted values for the employee
provided for in annexes 2 and 3 to this regulation.
§ 6
The minimum information provided by employees to protect the health
When you work
[To section 103, paragraph 1 (b), (f)) of the labour code]
Employees who perform work that is associated with exposure to neionizujícímu
radiation in the frequency range from 0 Hz to 3.1011 Hz, the employer must
to provide for the protection of health at work always has a
a) the measures taken under this regulation, the highest
the permissible values, how they are determined, as well as on the possible
the risks that arise from their crossing,
(b) the results of the survey and evaluation),
(c) the ways to recognize) health effects of exposure and how it is
usher,
(d)) safe working practices to reduce the risks
related to exposure to radiation neionizujícímu.
PART THREE
THE TERMS OF PROTECTION OF THE HEALTH OF OTHER PERSONS
§ 7
Maximum permissible exposure values and how the person uses or
source of non-ionizing radiation has in the identification and evaluation of the
exposure to other people
(Section 35 of Act No. 258/2000 Coll.)
(1) for the determination and assessment of exposure to other persons § 2 (2). 1
(a). (b)), and (c)) and paragraph 2. 2 and 3, § 3, section 4 (b). (b)) and paragraph 5 accordingly.
(2) the places accessible to the public, in which are
exposure of others exceeded the reference value in the band of frequencies
0 Hz-300 Hz identified under section 3 shall be marked with a warning
physical persons using a pacemaker alert to possible
risk.
PART FOUR
PROTECTION OF THE HEALTH OF WORKERS AGAINST THE ADVERSE EFFECTS OF OPTICAL RADIATION
§ 8
the title launched
(Section 35 and 36 of the Act No. 258/2000 Coll.)
(1) optical radiation, for the purposes of this regulation the radiation from the
artificial sources in the frequency range from 3. 1011 Hz to 1.7. 1015 Hz,
the corresponding peak lengths from 100 nm to 1 mm, whose spectrum is divided
on
and ultraviolet radiation) in the range of wavelength from 100 nm to 400 nm,
which is further divided into
1. UVA ultraviolet radiation corresponding to wavelengths from 315 nm to lengths of 400
NM,
2. ultraviolet radiation UVB wavelengths corresponding to lengths from 280 nm to 315
NM and
3. ultraviolet UVC corresponding lengths from the peak 100 nm to 280
NM,
(b)) visible radiation in the range of wavelengths from 380 nm to 780 nm,
c) infrared radiation in the wavelength range from 780 nm to 1 mm.
(2) according to the progress of the optical radiation emissions makes a distinction on a coherent and
non-coherent. Coherent radiation emission arises, where is
clearly defined its phase and frequency; radiation emitted by the laser
radiation is coherent. Non-coherent radiation produces spontaneous emission
radiation.
(3) for the purposes of this regulation, the laser means any device,
that can be adjusted to the creation or amplification of electromagnetic
radiation in the optical radiation wavelength range primarily by the process
controlled stimulated emission.
(4) the maximum permissible exposure values to optical radiation nekohorentnímu
are listed in annex 2 to this regulation.
(5) the maximum permitted values for laser radiation exposure has been broadcast are
listed in annex 3 to this regulation.
§ 9
the title launched
(Section 35 and 36 of the Act No. 258/2000 Coll.)
When marshaling the lasers into classes is treated in accordance with the technical standards
governing the safety of laser equipment ^ 3) (hereinafter referred to as "the technical
standard ").
§ 10
Details of the technical documentation necessary for health
(Section 35 and 36 of the Act No. 258/2000 Coll.)
Each laser must be attached to the technical documentation, in which they are
contained the following information:
a) wavelength of laser radiation and the kind of laser active
environment; in the case of radiation-emitting lasers on a larger number of wavelengths
lengths, indicate all of the emitted wavelength,
(b)) mode to generate laser radiation, pulsed or continuous,
pulsed high repetition rate,
c) diameter output laser radiation on the volume and its divergence,
sbíhavého a volume also its smallest diameter,
(d)) with lasers, which generate radiation
1. in the continuous mode, the most radiant flux,
2. in impulse mode of radiant energy in a single pulse, the longest and
the shortest duration of one pulse, the largest and the smallest refresher
the frequency of the pulses,
3. in impulse mode with high repetition rate data as described in point 2
and the largest central radiant raised, radiation,
(e) the inclusion of the laser to the class),
f) data on factors other than radiation, resulting from the operation of the laser,
that could adversely affect the working conditions or health,
g) instructions for correct Assembly and installation, including construction and
space requirements,
h) instructions for use under normal and emergency situations, maintenance instructions, and
If necessary, important information, such as a ban on shooting the cover for
Laser bearing housing or warning on the danger arising from the
observation of the beam with optical AIDS,
I) the serial number of the laser and its year of manufacture, trade name or business name and
the registered office of the manufacturer, in the case of a legal person, or the name or names,
last name or business name and registered place of business of the manufacturer, in the case of
natural person.
§ 11
The detection and assessment of exposure to optical radiation
(Section 35 and 36 of the Act No. 258/2000 Coll.)
(1) Determine the levels of optical radiation shall be based on the measurement of
carried out by a notified body ^ 4) or a calculation according to the relations
referred to in annexes 2 and 3 to this regulation.
(2) the assessment of working conditions at work associated with exposure to
includes information on optical radiation
and) level, wavelength range and duration of exposure to artificial sources of optical
radiation,
b) possible effects on workers ' health and safety resulting from
interaction between optical radiation and chemical substances with the
"effects,
(c)) any indirect effects such as temporary glare, explosion
or a fire,
(d) the availability of the device allowing to reduce) exposure to optical radiation,
(e) the findings of the investigation public control), health surveillance,
(f) the number of the device) of optical radiation from artificial sources,
g) inclusion in the laser class in accordance with technical standards ^ 3) and of any artificial
sources of optical radiation, which could cause damage to health
work, similar damage to the laser-sampled in accordance with technical standards ^ 3) into
class 3B or 4, and further information from the manufacturers of optical radiation sources.
§ 11a
Minimum measures for the protection of health at work associated with exposure to
to optical radiation
(Section 35 and 36 of the Act No. 258/2000 Coll.)
(1) if the risk assessment shows that can be crossed
permissible exposure limits of optical radiation, the employer shall
take the following measures:
and) design your workflow, which will reduce the risk of exposure
to optical radiation,
(b) ensure that the reduction of emissions) of optical radiation technical measures
by shielding or other locking devices,
(c) to ensure appropriate maintenance programmes) device
(d)) to ensure the spatial arrangement of the workplace, so as to ensure
limit the risk arising from exposure to optical radiation,
e) ensure appropriate personal protective equipment,
f) workplace safety signs according to a special legal
prescription ^ 5).
(2) the employer shall ensure that workers were demonstrably
informed of the results of the assessment, measurement and/or calculations of the levels of
exposure to optical radiation.
(3) the employer must ensure training of employees focused on
and) way to detect harmful effects of optical radiation,
(b) health problems, reports)
c) procedures to minimize the risks related to exposure to optical
radiation,
(d)), the proper use of personal protective equipment.
PART FIVE
FINAL PROVISIONS
§ 12
Regulation (EEC)
The Government Decree No 480/2000 Coll., on the protection of health against non-ionizing
radiation, is hereby repealed.
section 13 of the
The effectiveness of the
This Regulation shall enter into force on 30 April 2005. April 2008.
Prime Minister:
Ing. Topolanek in r.
Minister of health:
Mudr. Julínek, MBA in r.
Annex 1
The maximum permitted values and the reference values
1. the maximum permitted values for the modified current density
in the central nervous system induced by electric and/or
the magnetic field with a frequency of f in the interval from 0 Hz to 10 MHz are
set out in table 1.
Table No. 1
------------------------------------------- ----------------------------------
Modified induced current density Jmod *-maximum permitted values
------------------------------------------- ----------------------------------
Employees of other persons
--------------------------------- --------------------------------------------
Jmod frequency [A. m-2] frequency f Jmod [A. m-2]
f [Hz] [Hz]
--------------------------------- --------------------------------------------
five times lower than the highest
300-107 square root 2.0.01 and). 0-107 allowable value for
employee
--------------------------------- --------------------------------------------
and the absolute value of the modified) Maximum current density in the Central
nervous system shall not at any time exceed the maximum
permissible value; in other parts of the fuselage, not modified
current density may not exceed five times the maximum permitted values
listed in table 1, if the frequency is higher than 1 Hz.
*
2. the maximum permitted value of the measurement of absorbed power (SAR) are
set out in table 2. These maximum levels shall apply
the total absorption of all the components present in the electromagnetic field
tissues of the body in the interval frequency from 100 kHz to 10 GHz.
Table No. 2
---------------------------------- ------------------------------------------------
Specific absorbed power (SAR) (b))-the maximum permitted values
---------------------------------- ------------------------------------------------
Applies to Ground SAR SAR average average over
frequency from any šestiminutový over any absorbed
100000 Hz to the power-SAR-šestiminutový interval and for any
1010 Hz average interval and for 10 g of tissue) of the hands,
through any of the wrists, feet and
šestiminutový 10 g of tissue) of the ankles
interval and the whole with the exception of the hands,
the body of the wrists, feet
and ankles
---------------------------------- ------------------------------------------------
employees of 0.4 W/kg 10 W/kg 20 W/kg
---------------------------------- ------------------------------------------------
other persons 0.08 W/kg of 2 W/kg 4 W/kg
---------------------------------- ------------------------------------------------
10 g of tissue) and listed in table 2 must be chosen in the shape of a cube,
not as a flat formation on the surface of the body
(b)) For the exposure of the people pulsům less than 30 µs at a frequency of 300 MHz to
10 GHz is recommended to introduce additional restrictions 10 mJ/kg průměrovaných
for 10 g of tissue for the unit of absorbed energy.
3. the maximum permitted values for density, radiant flux
electromagnetic waves in the range of frequencies from 10 GHz to 300 GHz,
the incident on the body or a part of it, are set out in table no. 3.
Table 3
---------------------------------------- -----------------------------------------
Radiant flux density with *-the maximum permitted levels
Employees of other persons
----------------------------------------- ----------------------------------------
frequency f [Hz] with [W m-2] frequency f [Hz] with [W m-2]
> 1010-1010-3.1011 50 > 3.1011 10
-------------------------------------------- -------------------------------------
Averaging time for frequency 10 GHz to 300 GHz is Tst = 1, 92.1011/f
1.05; (f) is in Hertz, Tst, in minutes. S is the mean value of the density
radiant flux incident on a surface equal to 20 cm2 of any part of the body
exposed individuals. The maximum average value with reference to 1
cm2 of exposed surface must not exceed twenty times the values
listed in table 3.
4. the reference level for the intensity of the electrical and magnetic fields
(magnetic induction) and radiant flux density, referred to in the tables
4 to 9, shall apply to the field intact by the presence of people in the
space. If the field is spatially highly inhomogeneous, compares with
either the field strength reference level averaged over a range of
the corresponding position of the spine or averaged over the area corresponding to the
the position of the head of the exposed individuals, or for comparison with
the reference level takes the value in the geometric center of the area.
Not to exceed the reference value of the contact current is established either by direct
by measuring the contact current for competent natural person or by measuring the
simulating the impedance of the load resistor current of the human body. If it is not
otherwise expressly stated, are the reference levels established in effective
the values of the relevant variables.
Table 4
------------------------------------- ------------------------------------------------
The reference level of intensity of the electric field E-continuous exposure
------------------------------------- ------------------------------------------------
Employees of other persons
------------------------------------- ------------------------------------------------
frequency f [Hz] E [m-1] frequency f [Hz] E [m-1]
------------------------------------- ------------------------------------------------
< 1 - a) < 1 - a)
1-8 20000 1-8 10000
8-25 20000 8-25 10000
25-820 5.105/f 25-800 2, 5.105/f
50 10000 50 5000
610 800-820-3,103 3,103 2, 5.105/f
3,103-610 65.103 3,103-150.103 87
65.103-106 610 150.103-106 87
106-107 610.106/f 106-107 87.103/f0, 5
107-4.108 61 107-4.108 28
4.108 on 2,147-3.10-3. f 0.5-1 on 2,147 4.108, 375.10-3. f 0.5
on 2,147-3.1011 137 on 2,147-3.1011 61
------------------------------------- ------------------------------------------------
and) the reference level for the static electric field is not deployed; When
stay in a powerful static electric field is, however, necessary to reduce the effect
discomfort caused by an electric charge induced on the
the surface of the body and to prevent the discharge of sršení surface of the body.
If at the same time present and magnetic fields, for comparison with the reference
the value must be used as described in section 5.
Table No. 5
-------------------------------- ----------------------------------------------
Reference levels for magnetic induction B-continuous exposure
-------------------------------- ----------------------------------------------
Employees of other persons
-------------------------------- ----------------------------------------------
frequency f [Hz] (B) [T] frequency f [Hz] (B) [T]
-------------------------------- ----------------------------------------------
* 0.28 < < 1 1 * 0.056
1-8 0.2/f-8 2 1 0.04/f 2
8-25 0.025/f 8-25 0.005/f
25-10-25-820-3/f 25-800 0.005/f
50 500.10-6 50 100.10-6
820-3,103 30, 7.10-6 800-3,103 6, 25.10-6
3,103-65.103 30, 7.10-6 3,103-150.103 6, 25.10-6
65.103-106 2/f 150.103-106 0.92/f
106-107 2/f, 106-107 0.92/f
107-4.108 0, 2.10-6 107-4.108 0, 092.10-6
4.108 on 2,147-10-11. f 0.5-4.108 on 2,147 4, 6.10-12. (f) 0.5
on 2,147-3.1011 0, 45.10-6 on 2,147-3.1011 0, 20.10-6
-------------------------------- ----------------------------------------------
the amplitude of the
When the exposure only the hands or feet is permissible to reference values
to increase the ratio of the linear dimensions of inversely to the exposed part of the body to
linear dimension of the hull.
It is also present at the field of electrical, for comparison with a reference
the value must be used as described in section 5.
Table 6
---------------------------------- -------------------------------------------
The reference levels for the radiant flux density with continuous exposure-
---------------------------------- -------------------------------------------
Employees of other persons
---------------------------------- -------------------------------------------
Frequency f [Hz] with [W m-2] frequency f [Hz] with [W m-2]
---------------------------------- -------------------------------------------
10 107-107-4.108 4.108 2
4.108 4.107-4.108 on 2,147 f/-on 2,147 f/2.108
on 2,147-3.1011 50 ** on 2,147-3.1011 10 **
---------------------------------- -------------------------------------------
* This variable is only applicable for a rolling wave. In the reactive zone
You must use the resource reference levels for E and B listed in tables
No. 4 and 5.
** In the interval from 10 GHz to 300 GHz values is
radiant flux density maximum value. Time averaging
for frequencies up to 300 GHz, 10 GHz is Ts = 1, 92.1011/f 1.05; (f) is in the
Hertz, averaging time in minutes.
5. Exposure to the fields with multiple frequencies
For the assessment of exposure situations according to the identified reference levels
When exposed to electric and/or magnetic field with several different
frequency is assessed separately direct stimulation, which is applicable in the
the interval of frequencies from 0 Hz to 10 MHz, and the heat exposure to the field that
in the interval of frequencies from 100 kHz to 300 GHz.
Electrical stimulation-induced induced electric current density
in the tissue does not exceed the reference value, fulfil the established levels
fields of inequality:
EI indicates the intensity of the electric field with frequency,
El, i-reference level of intensity of electric field for the i-th
the frequency,
BJ-magnetic induction with a frequency of j,
BL, j-reference value of magnetic induction for the j-th rate
a = 610 V/m for the exposure of the worker and 87 in/m for exposure to other
people,
b = 30.7. 10-6 tesla for the exposure of the worker and 6.25. 10-6 tesla for
exposure to other people.
Constant values (a and b in this case are used for frequency
greater than 65 kHz or 1 MHz because the sum concerns the densities
induced currents and does not include the thermal action field.)
Thermal action which it applies at frequencies exceeding 100
kHz shall not exceed permissible value, inequalities are satisfied:
c = 610.106/f, V/m for the exposure of the worker and 87.103/f 0.5 V/m
exposure to other people, and
d = 2/f tesla for the exposure of the worker and 0.92/f tesla for exposure
other people.
F is frequency in Hertz.
6. Short term exposure
Thermal effect of exposure to electric and magnetic fields less than
averaging period is, or a series of short term exposures
acting in less than the time fixed for the averaging,
does not exceed the reference value, if the exposure time and the identified
the level of Ei and Bi fields of the interval frequency from 100 kHz to 10 GHz meet
inequality
TI is the i-th exposure time in minutes.
Symbols have been identified:
EI-intensity electric field during the i-th exposure units
In the m-1,
BI-magnetic induction during the i-th exposure in tesla (T),
-The density of the radiant flux during the i-th exposure in units of W m-2,
EL, i, BL, SL, and i-reference levels, the intensity of electric field
magnetic induction and radiant flux density for continuous exposure
listed in tables 4, 5 and 6.
For frequencies higher than 10 GHz is for the evaluation of short-term exposure
It's the time averaging Tst listed under table 6.
Immediate field values and vibrant streams, however, shall not exceed the limit
the reference levels referred to in tables 7, 8 and 9.
Table 7
---------------------------------- ------------------------------------------------
Electric field strength reference limit Emez (amplitude)
---------------------------------- ------------------------------------------------
Employees of other persons
---------------------------------- ------------------------------------------------
frequency f [Hz] E [m-1] frequency f [Hz] E [m-1]
---------------------------------- ------------------------------------------------
105 915 105 130
105-106 0.438. (f) 105-106 0.0605 0.67. F0, 67
106 4226 106 603
106-107 4, 3514.105/f, 106-107 0.335 56.03. (f) 0.17
107 1952 107 896
107-4.108 1952 107-4.108 896
4.108 1952 4.108 896
4.108-on 2,147 0.098. (f) 1/2-4.108 on 2,147 0.0448. (f) 1/2
2.109 4384 2.109 1952
on 2,147-4384 3.1011 on 2,147-3.1011 1952
---------------------------------- ------------------------------------------------
Table No. 8
---------------------------------- -----------------------------------------------------
Limit reference value of magnetic induction Bmez (amplitude)
---------------------------------- -----------------------------------------------------
Employees of other persons
---------------------------------- -----------------------------------------------------
frequency f [Hz] (B) [T] frequency f [Hz] (B) [T]
---------------------------------- -----------------------------------------------------
30.10-6 105 105 9, 375.10-6
105-106, 1-3/f 427.10 0.335 105-106, 1619.10-0 3/f 0.247
106 1, 385.10-5 106 5, 3.10-6
106-107 0,001427/f, 106-107 0.335 0, 1619.10-3/f 0.247
107 6, 4.10-6 107 3.10-6
107-4.108 6, 4.10-6 107-4.108 3.10-6
4.108 6, 4.10-6 4.108 3.10-6
4.108 on 2,147-3.2. 10-10 f 1/2 4.108-on 2,147 1.5x10-10. (f) 1/2
on 2,147 14, 4.10-6 on 2,147 6, 4.10-6
on 2,147-3.1011 14, 4.10-6 on 2,147-3.1011 6, 4.10-6
---------------------------------- -----------------------------------------------------
Table No. 9
-------------------------------------- ---------------------------------------------
The limit of the reference density of the radiant flux of Slimit (amplitude)
-------------------------------------- ---------------------------------------------
Employees of other persons
-------------------------------------- ---------------------------------------------
frequency f [Hz] with [W m-2] frequency f [Hz] with [W m-2]
-------------------------------------- ---------------------------------------------
107-4.108 10000 107-4.108 2000
4.108 on 2,147-25 10-6 f-4.108 on 2,147 5.10-6. (f)
on 2,147 50000 on 2,147 10000
on 2,147-3.1011 50000 on 2,147-3.1011 10000
-------------------------------------- ---------------------------------------------
* This variable is only applicable for a rolling wave. In the induction zone
You must use the resources limit the reference levels for the E and B as referred to in
tables 7 and 8.
6. limit reference levels for exposure to multiple frequency fields
During exposure to the fields with multiple frequencies must be immediate intensity values
electric field of Ei, the magnetic induction density, radiant flux Bi and You
satisfy the inequality for all t
Emez, Bmez and Slimit are limiting the reference levels referred to in tables.
4, 5 and 6.
8. the reference level for the effective value of the contact with the stream
frequency (f), of the emerging touch individuals with electrically conductive
the subject, with either the subject or a natural person are located in
electric field or in time-varying magnetic field, are
set out in table 10.
Table No. 10
-------------------------------------- ------------------------------------------------
Contact current I-reference levels
-------------------------------------- ------------------------------------------------
Employees of other persons
-------------------------------------- ------------------------------------------------
frequency f [Hz] current I [A] frequency f [Hz] current I [A]
-------------------------------------- ------------------------------------------------
2500 2500 < 0.001 < 0.0005
2500-105 4.10-7. (f) 2500-105 2.10-7 (f)
105-1, 1.108 0.04 105-1, 1.108 0.02
-------------------------------------- ------------------------------------------------
9. Induced current
Table # 11
-------------------------------------- ---------------------------------------------------
The reference levels for the induced current (i)
-------------------------------------- ---------------------------------------------------
Employees of other persons
-------------------------------------- ---------------------------------------------------
frequency f [Hz] induced current i [A] f [Hz] frequency induced current i [A]
-------------------------------------- ---------------------------------------------------
107-1, 1.108 0.1 107-1, 1.108 0.045
-------------------------------------- ---------------------------------------------------
* current running any leg
10. The inaccuracy of the levels found, due to inaccuracy of the calculation,
-type of the theoretical model or inaccuracies of measurement used
the device and the measuring conditions for comparison to the highest allowable
values, or with the reference levels be reallocated as follows:
10.1 the mean relative error of calculation or measurement of the
quantities of less than 1 dB (i.e. approximately 25% for power factors and 12.5
% for others), the maximum value or reference
level for observed, if the calculated or measured value equal to
the maximum permitted value or reference level, or if it is lower.
10.2 the mean relative error of the observed magnitudes greater than 1 dB,
the maximum permissible value or reference level for
to be fulfilled, if the calculated or measured value for the relevant quantities less
than its permitted limit or the reference level at least
so many decibels, about how many decibels exceeds the mean relative error 1
DB. The same rule applies, if it is to determine whether are not exceeded
the maximum permitted values, or reference levels, must use the
a combination of two or more of the identified values according to the relationship referred to in
of this annex.
11. Warning: in compliance with the benchmarks cannot be
to exclude the influence of certain electronic devices implanted in the
of the body, such as pacemakers, prostheses containing ferromagnetic
materials, and so on.
Annex 2
The maximum permitted value of the exposure of workers to ultraviolet,
visible and infrared nelaserových technology resources
The biophysically relevant exposure values to optical radiation can be
determined using the formulae below. Selection formulas depends on the extent
radiation emitted by the source and the results should be compared with the
corresponding to the highest allowable exposure values referred to in
table 1.
Indications and) up to) refers to corresponding rows of table 1.
Used variables
E (lambda, t) spectral radiant flux density: the radiant power incident per unit
the area perpendicular to the direction of proliferation and on the selected wavelength interval,
expressed in watts per square metre per nanometre (W m-2 nm-1)
Eeff (t) effective radiant flux density in the range of UV: calculated density
radiant flux in the UV wavelength range 180 nm to
400 nm spectrally weighted by S (lambda), expressed in Watts
per square metre (W m-2),
H radiant exposure: radiant flux density integral over time, expressed in
joules per square metre (J m-2),
Heff effective radiant exposure: radiant exposure spectrally weighted
coefficient (lambda), expressed in joules per square metre (J m-2),
EUVA (t) the total radiant flux density for UVA: calculated density
radiant flux in the range 315 nm wavelength UVA to 400 nm, expressed
in watts per square metre (W m-2),
HUVA radiant exposure, integral or sum of the radiant flux density over the
time and wavelength in the UVA wavelength range 315 nm to 400 nm, expressed in
in joules per square metre (J m-2),
With (lambda) spectral weighting taking into account the dependence of the effects of UV
radiation to the eyes and skin of the wavelength,
Llambda (lambda, t) spectral radiance of the source expressed in watts per metre
square on the nanometre steradian (W m-2.sr-1 nm-1)
R (lambda) spectral weighting taking into account the dependence of the heat
damage to the eye caused by a visible or infrared radiation on
wavelength range (table 1.3),
(T) LR effective radiance (thermal injury): calculated radiance spectrally weighted
the coefficient R (lambda), expressed in watts per square metre per
steradian (W m-2.sr-1)
B (lambda) spectral weighting taking into account the dependency
photochemical damage to the eye caused by blue light radiation on
the wavelength,
LB effective radiance (t) for blue light: calculated radiance spectrally weighted
the coefficient B (lambda), expressed in watts per square metre per
steradian (W m-1.sr-1)
EB (t) effective radiant flux density in the range of blue light:
the calculated density of radiant flux in the range of wavelengths of ultraviolet
radiation of 300 nm to 700 nm spectrally weighted by B (lambda)
expressed in watts per square metre (W m-2),
EIR (t) the total radiant flux density for heat damage: calculated
radiant flux density in the range of wavelengths of infrared radiation
780 nm to 3000 nm, expressed in watts per square metre (W m-2),
Eskin (t) the total radiant flux density for visible radiation, IRA
and IRB: the calculated density of radiant flux in the range of wavelengths
visible and infrared wavelength range 380 nm to 3000 nm, expressed in
Watts per square metre (W m-2),
Hkůže radiation exposure, integral or sum of the radiant flux density over the
time and wavelength in the visible and infrared wavelength range
radiation from 380 nm to 3000 nm, expressed in joules per square metre
(J. m-2),
Alpha angle: the angle of the source, real or virtual,
creating the smallest possible image on the retina, as seen from a particular point
in space, expressed in milliradians (mrad).
Table 1 maximum permitted values for non-coherent
optical radiation
Note 1: the range of 300 nm to 700 nm covers part of the UVA and UVB, the entire
most of the visible radiation; related risks are, however, commonly referred
as the risk of "blue light". Exactly expressed, blue light covers
only a range of approximately 400 nm up to 490 nm.
Note 2: in the case of rigid fixation of very small sources with viewing angle
11mrad may be LB < (t) converted to EB (t). This normally only applies to the
ophthalmic instruments or a stabilized eye during anaesthesia.
The maximum time to "stare" at source will be calculated by the formula:
Tmax = 100/EB (t), where (t) is expressed in W m-2. This value
shall not exceed due to eye movements during normal Visual 100 s.
Table No. 2 (lambda) [dimensionless], 180 nm to 400 nm
---------------------------------------------- -----------------------------------------------
Lambda with lambda with lambda with lambda with lambda with
[nm] (lambda) [nm] (lambda) [nm] (lambda) [nm] (lambda) [nm] (lambda)
---------------------------------------------- -----------------------------------------------
180 0.0120 228 0.1737 276 0.9434 324 0.000520 372 0.000086
181 0.0126 229 0.1819 277 0.9272 325 0.000500 373 0.000083
182 0.0132 230 0.1900 278 0.9112 326 0.000479 374 0.000080
183 0.0138 231 0.1995 279 0.8954 327 0.000459 375 0.000077
184 0.0144 232 0.2089 280 0.8800 328 0.000440 376 0.000074
185 0.0151 233 0.2188 281 0.8568 329 0.000425 377 0.000072
0.0158 234 186 0.2292 330 0.8342 282 0.000410 378 0.000069
0.2400 283 0.0166 187 235 0.8122 331 0.000396 379 0.000066
188 0.0173 236 0.2510 284 0.7908 332 0.000383 380 0.000064
189 0.0181 237 0.2624 285 381 0.000062 0.000370 0.7700 333
190 0.0190 238 0.2744 286 0.7420 334 0.000355 382 0.000059
191 0.0199 239 0.2869 287 0.7151 335 0.000340 383 0.000057
192 0.0208 240 0.3000 288 0.6891 336 0.000327 384 0.000055
193 0.0218 241 289 0.3111 0.6641 337 0.000315 385 0.000053
0.0228 194 242 0.3227 290 0.6400 338 0.000303 386 0.000051
0.0239 195 0.3347 291 243 0.6186 339 0.000291 387 0.000049
196 0.0250 244 0.3471 292 0.5980 340 0.000280 388 0.000047
197 0.0262 245 0.3600 293 0.5780 341 0.000271 389 0.000046
198 0.0274 0.3730 0.5587 342 294 246 0.000263 390 0.000044
199 0.0287 247 0.3865 295 0.5400 343 0.000255 391 0.000042
200 0.0300 248 0.4005 296 0.4984 344 0.000248 392 0.000041
201 0.0334 249 0.4150 297 0.4600 345 0.000240 393 0.000039
202 0.0371 298 0.4300 250 0.3989 346 0.000231 394 0.000037
203 0.0412 251 0.4465 299 0.3459 347 0.000223 395 0.000036
204 0.0459 252 0.4637 300 0.3000 348 0.000215 396 0.000035
205 0.0510 253 0.4815 301 0.2210 349 0.000207 397 0.000033
206 0.0551 254 0.5000 302 0.1629 350 0.000200 398 0.000032
207 0.0595 351 0.1200 255 0.5200 303 0.000191 399 0.000031
208 0.0643 256 0.5437 304 0.0849 352 0.000183 400 0.000030
209 0.0694 257 0.5685 305 0.0600 353 0.000175
0.0750 258 210 0.5945 306 0.0454 354 0.000167
211 0.0786 307 0.6216 259 0.0344 355 0.000160
212 260 0.0824 0.6500 308 0.0260 356 0.000153
213 0.0864 261 0.6792 309 0.0197 357 0.000147
214 0.0906 262 0.7098 310 0.0150 358 0.000141
215 0.0950 263 0.7417 311 0.0111 359 0.000136
216 0.0995 264 0.7751 312 0.0081 360 0.000130
217 0.1043 265 0.8100 313 0.0060 361 0.000126
218 0.1093 266 0.8449 314 0.0042 362 0.000122
0.8812 315 219 0.1145 267 0.0030 363 0.000118
220 0.1200 268 0.9192 316 0.0024 364 0.000114
221 0.1257 269 0.9587 317 0.0020 365 0.000110
222 0.1316 270 1.0000 318 0.0016 366 0.000106
223 0.1378 271 0.9919 319 0.0012 367 0.000103
224 0.1444 272 0.9838 320 0.0010 368 0.000099
225 0.1500 273 0.9758 321 0.000819 369 0.000096
226 0.1583 274 0.9679 322 0.000670 370 0.000093
227 0.1658 275 0.9600 323 0.000540 371 0.000090
---------------------------------------------- -----------------------------------------------
Table 3
B (lambda), R (lambda) [dimensionless]
---------------------------------------------------------
Lambda [nm] B (lambda) R (lambda)
---------------------------------------------------------
300 = 0.01 of lambda 380 < < —
380 0.01 0.1
385 0.013 0.13
390 0.025 0.25
395 0.05 0.5
400 0.1 1
405 0.2 2
410 0.4 4
415 0.8 8
420 0.9 9
425 0.95 9.5
430 0.98 9.8
435 1 10
440 1 10
445 0.97 9.7
450 0.94 9.4
455 0.9 9
460 0.8 8
465 0.7 7
470 0.62 6.2
475 0.55 5.5
480 0.45 4.5
485 0.32 3.2
490 0.22 2.2
495 0.16 1.6
500 0.1 1
lambda = 500 < < 600,100.02. (450-lambda) 1
lambda = 600 < < 700 0.001 1
lambda = 700 < < 1050 — 100.002. (700-lambda)
lambda = 1050 < < 1150 — 0.2
lambda = 1150 < < 1200 — 0, 2,100, 02. (1150-lambda)
lambda = 1200 < < 1400 — 0.02
---------------------------------------------------------
Annex 3
The maximum values of radiation lasers
1. the maximum permitted value of the maximum permissible radiation exposure lasers
the value of the radiation exposure of lasers for looking directly into the volume or a
volume mirror-reflected in table 1, for a look at
diffuse the laser exposed area in diffusing the table no. 2. Table No.
regulates the maximum permitted value of radiant flux density, or
densities of radiant energy for interaction of laser radiation on the skin. Correction
factors of C1 through C4 and critical times T1 and T2 are used in tables 1 to 3
are expressed in the formula in table 4. Critical time T1 and T2 to determine
According to which a relationship is to be permissible value of the radiation.
2. for repeated exposure Correction
Each of the three following rules shall apply to all exposures
occurring in breathing repeatedly or scanning laser
systems
2.1. The exposure to any single pulse in pulses shall not
exceed the maximum permissible value of the exposure for a pulse with a
the duration of that pulse.
2.2 Exposure of any group of pulses (or sub-group of pulses in a train)
the time t shall not exceed the maximum permissible exposure value for time t.
2.3 Exposure to any single pulse within a group of pulses shall not
exceed the maximum permissible value of the exposure for a single pulse multiplied by the
cumulative-thermal correction factor Cp = N-0.25, where N equals the number of
pulses. This rule applies only to the highest admissible values
exposure to protection from thermal injury, where all pulses
delivered in less than Tmin are regarded as one pulse. The Value Of The Tmin
is defined in table 7.
3. the Volume of radiation of the laser, which is the eye level of the observer seen under
an angle greater than the angle of the alfamin expressed by the formula in table 6, the
considers the radiation area resources. The maximum values of radiation
such resources are determined by the limiting values given in the tables
Nos 1 to 3, which is further
corrected by multiplying bezrozměrným by a factor of CE:
CE = Alpha/alfamin for alfamin alpha = 0.1 < < rad
CE = Alpha2/(alfamin. alfamax) for Alpha > alfamax; alfamax = 0.1 rad;
and it is in radians
Table 1-maximum permissible exposure value when directly exposed to
laser radiation on the cornea of the eye (direct view to the volume)
Table 2-maximum exposure in the corneas of observation
2D laser source or laser beam after diffuse reflection
Table 3-maximum permissible radiation exposure to the laser
irradiation of the skin
Table 4
---------------------------------------- ------------------------------
Lambda wavelength [nm]
Parameter
from to
---------------------------------------- ------------------------------
C1 = 5.6. 103. t 0.25 302.5 400
T1 = 10 0.8 (lambda-295). 10-15 with 302.5 315
C2 = 10 0.2 (lambda-295) 302.5 315
T2 = 10.10 ± 0,02 (lambda-550) with 550 700
C3 = 10 0.015 (lambda-550) 550 700
C4 = 10 (lambda-700)/500 700 1050
---------------------------------------- ------------------------------
Table No. 5
------------------------- --------------------------------
Parameter of pulse repetition rate N
------------------------- --------------------------------
C5 = N-0.5 N = 1 s-1 to s-1 278
------------------------- --------------------------------
C5 = 0.06 N > 278 s-1
------------------------- --------------------------------
Table 6
------------------------- --------------------------------
Exposure time parameter t [s]
------------------------- --------------------------------
alfamin = 8, 5.10-3 rad t < 10-9
alfamin = 0, 25.10 3. t-10-9 = 0.17 < t 18. 10-6
rad
alfamin = 15.10-3. t 0.21 advice 18. 10-6 = 10 < t <
alfamin = 24.3. 10-3 rad t 10
------------------------- --------------------------------
Note: for the lambda 1050 nm > and t 50.10-6 with a <
It is necessary to correct the equation for alfamin by multiplying factor
1.4, and use therefore the formula alfamin = 0.25. 1.4. 10-3. t-rad 0.17
Table 7
-----------------------------------------------
Spectral range [nm] Tmin [s]
-----------------------------------------------
lambda = 315 < < 400 10-9
lambda = 400 < < 1 050 18.10-6
lambda = 1 050 < 50.10-6 < 1 400
lambda = 1 400 < < 1 500 10-3
lambda = 1 500 < < 1 800 10
lambda = 1 800 < < 2 600 10-3
lambda = 2 600 < < 106 10-7
-----------------------------------------------
1) European Parliament and Council Directive 2004/40/EC of 29 April 2004. April
2004 concerning minimum requirements for the safety and protection of health from
exposure of workers to the risks arising from physical agents
(electromagnetic fields). Directive of the European Parliament and of the Council
2006/25/EC of 5 July 2004. April 2006 on minimum requirements for the safety
and health protection from exposure of workers to the risks arising
from physical agents (artificial optical radiation) (19th
individual Directive within the meaning of article 87(1). Article 16(1). 1 of Directive 89/391/EEC).
2) Act No. 309/2006 Coll.
3) Section 4a of the Act No. 22/1997 Coll., on technical requirements for products and on the
amendments to certain laws, as amended.
EN 60825-1:2007.
4) § 83a para. 1 (b). g) Act No. 258/2000 Coll., on the protection of the public
health and amending certain related laws, as amended by Act No.
274/2003 Coll.
5) Government Decree No. 11/2002 Coll., laying down the appearance and location of the
the introduction of the safety signs and signals, as amended by Decree-Law No.
405/2004 Sb.
