The Requirements For Material Measures Of Length Referred To By The Eec

Original Language Title: požadavky na hmotné délkové měrky označované značkou EHS

Read the untranslated law here: https://portal.gov.cz/app/zakony/download?idBiblio=49711&nr=339~2F2000~20Sb.&ft=txt

339/2000 Sb.



DECREE



The Ministry of industry and trade



of 6 May 1999. September 2000,



laying down the requirements for material measures of length referred to brand

EEC



Change: 260/2003 Coll.



The Ministry of industry and trade shall determine in accordance with section 27 of Act No. 506/1990

Coll. on metrology, as amended by Act No. 121/2000 Coll. (hereinafter the "Act")

for the implementation of § 6 (1). 2 and § 9 para. 1 of the Act:



§ 1



This Decree lays down the requirements for material measures of length (hereinafter referred to as

"measure").



§ 2



Measures may be laid down by the official marks, instead of the description

special legal regulation ^ 1) marked by an EEC type-approval, and

the initial EEC verification, whose graphic design provides for a specific legal

prescription, ^ 2) only if they meet the requirements set out in the annex to this

the Decree, and that it was verified the procedures laid down in a special

legislation. ^ 2)



§ 3



This Decree shall take effect on the date of publication of the sectoral annex for

the measuring instrument to the Protocol to the Europe Agreement establishing an association between the

The Czech Republic on the one hand, and the European communities and their

Member States, of the other part, on conformity assessment and acceptance of

industrial products in the collection of international treaties, or on the date of entry

the Treaty of accession of the Czech Republic to the European Union entered into force,

If the day earlier.



Minister:



doc. Ing. Gregr, r.



XIII.



The requirements on the dipstick



1.



The DEFINITION of the



1.1 gauges, measuring instruments which are contain scale marks whose

distances are given in legal units of length.



1.2. the nominal length of the measure is the length, which is marked with the gauge.



1.3 the principal scale-marks are two brands that work

the distance represents the nominal length of the measure.



1.4 the scale length is made up of the scale marks and the other marks.



1.5. the measure of length is described as:



1.5.1 the end gauge, if the principal scale-marks are formed by

two surfaces;



1.5.2 If the principal scale-marks are formed by

two lines, commas, holes or marks; fall into this category

even the zone;



1.5.3 a composite measure when one of the principal scale-marks

is a surface and the other a line, hole or mark.



2.



MATERIALS



Of length and their supplementary appliances shall be made of materials,

which are, under normal conditions of use is sufficiently durable, stable and

resistant to environmental influences.



The quality of the materials used must be such that:



and for normal use) at temperatures up to 8 ° C above or below the

the reference temperature changes in length were greater than the maximum permissible

errors



(b)) for the measures, which must be used for the action of certain traction,

did not cause a drop or increase this force by 10% change of length more

than the maximum permissible error.



3.



CONSTRUCTION



3.1 Measures and their supplementary appliances shall be clearly and thoroughly

constructed and carefully worked.



3.2 a cross section of the measure must be of such dimensions and shape that, under

normal conditions of use allow for measurements to be made with the accuracy,

that is required for the class of accuracy to which the relevant measure belongs.



3.3. the Terminal surfaces of end measures shall be equal. These Terminal surfaces and

the lines must be perpendicular to the longitudinal axis of the measure.



3.4. the Terminal surfaces of end or composite measures made of wood or

another material whose durability is equal to or less than

the durability of wood, it must be made up of a band or tip which is resistant to

to wear and impact and that is adequately attached to the measure.



3.5 additional devices, such as. one or more fixed

movable hooks, rings, handles, plates, bolts, reeds,

-or noniů, which facilitate and extend the use of the measure, are

allowed under the condition that they cannot be a cause of confusion. This device

must be designed and attached to the measure in such a way that, under

normal conditions of use could not in practice increase the inaccuracy of measurement.



3.6 Zone must be made so that in the event that the seat on the band

a flat surface its edges are almost straight and parallel.



2.3 Retracting device zones must be manufactured in such a way as to

could not cause any permanent deformation of the tape.



4.



GRADUATION AND NUMBERING OF SCALES



4.1 measures shall carry across the nominal length clear, regular and

indelible marking and numbering of the scale so as to allow

a sure, simple and unambiguous reading. Some non-numbered tags

the scale, the number of which does not exceed the number of scale marks between two

consecutive numbered scale marks on the measure, may extend beyond the

the basic scale mark at the end of the measure.



4.2 Value must match the value of the scale interval 1 x, 2 x 10En 10En

or 5 x 10En metres, where the power of "n" is a positive or negative number

or zero.



This value must be at most equal to:



a) 1 cm if the nominal length of the measure less than or equal to 2 m,



(b)) 10 cm if the nominal length of the measure greater than 2 m and less than 10 m,



c) 20 cm if the nominal length or equal to 10 m and less than

50 m,



d) 50 cm if the nominal length is larger than or equal to 50 m.



However, these values may be exceeded for certain specific uses, which

When you are submitting an application for approval of a justified and which must be on the

the measure stated.



4.3 If the scale marks ticks, then it must be straight, perpendicular to the axis

the measure and must all have the same width, which is along the entire

the length constant. The length of these lines must be related to corresponding

a unit of measurement. Ticks must be such as to form a distinct and

to understand the scale and make their width does not cause any inaccuracy

measurement.



4.4 part of the scale, located near the ends of the gauge, can be further

divided into decimal parts of the scale values valid for the whole

the dipstick. In this case, the width of the lines may be in areas of sparse

scale intervals smaller than in the rest of the measure.



4.5 the scale-marks may also be formed by holes if the value

scale interval greater than or equal to one centimetre, or other

marks, if the value of the scale interval greater than or equal to one

decimetre, provided that these marks ensure a sufficiently precise

reading, taking into account the class of accuracy to which the measure belongs.



4.6. Numbering can be continuous or repetitive. in the case referred to in

section 4.4 may numbering in zones with lower values of the scale

differ from the numbering in the rest of the measure. Position, size, shape,

color and contrast numbers must be appropriate to the scale and brands

the scale to which they relate.



Regardless of the value of the scale interval, which is listed in section 4.2, you must

be the scale marks numbered in metres, decimetres, centimetres

or millimetres without indication of the corresponding symbol.



The number of numbered scale-marks shall be such that the reading was

unambiguous.



If the numbering unit is other than the metre scale-marks may be

the corresponding meter marked in meters. Behind the numbers for m then

the symbol m, must be reported.



In addition, the number of preceding metres may be repeated in the same

way before otherwise designated scale marks.



If the value of the scale interval corresponds to the value 2, and the length of the interval x 10En

not less than 2 centimeters, all tags must be numbered

the scale.



4.7 If the measure has more than one scale, the tick values may be

different scales, and the numbering may increase in the same or opposite direction.



5.



NOMINAL LENGTH



5.1. the nominal length of the measures of length must have one of the following

values: 0.5, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9 m or a multiple of 5 m.



5.2 for special purposes, you can enable additional value, provided that the

the need to use a measure of such nominal length length at the time of

applications for type-approval is justified and that the specific use for which it is

measure reserved is indicated on the measuring dipstick.



5.3 Some of the nominal lengths in 5.1 are not allowed for the measures

referred to in paragraph 9.4.2.



6.



MARK



6.1 To 6.1.1 must bear the following markings:



6.1.1 the marking is mandatory in all cases:



a) nominal length,



b) manufacturer's identification mark or his trade name,



(c) identification of the accuracy class): I, II or III,



(d)) EEC type-approval mark.



6.1.2. the designation of compulsory in certain cases:



and, if the reference temperature) is different from 20 ° C,



(b) the tension force)



c) specific use for which it is reserved in the cases that are

listed in points 4.2 and 5.2.



6.2 nominal length, voltage, and temperature must be expressed in units of

measurement of permitted by Decree No xxx/2000 Coll., or in one of their

decimal multiples or parts, followed by the corresponding law

allowed tag.



6.3 All these markings shall be given visibly and legibly,

starting from the beginning of the measure.



In agreement with the Czech metrology Institute to an integral part of the measure

There may be some indication. In this case, must be in


EEC type-approval certificate provided for where these marks have

place.



If the width of the measure to allow the EEC type-approval mark has been

readable, this tag may be present, regardless of the provisions of section

3.1 Annex 1 of Decree No xxx/2000 Coll., and in accordance with point 3.5 of this

the annex, in the form of the following brands, referred to in the relevant

sequence:



-stylized letter epsilon,



-the distinctive letter (s) of the Member State which issued the certificate

EEC type-approval,



-the last two digits of the year of issue of EEC type-approval certificate,



-reference number of the EEC type-approval certificate.



6.4 the coefficient of linear thermal expansion of the material from which it is

the measure made, in the form: Alpha =......, can be displayed solely on the

responsibility of the manufacturer.



6.5. In addition, measures shall be borne by non-metrological information set out

by regulation or authorized Czech metrological Institute.



6.6 If the are encoded, must be expressed in the official language of the

the Member States, which are the measure specified.



6.7. Advertising inscriptions may appear on measures of length provided that the

their location complies with the provisions referred to in point 4.2.



6.8 the Inscriptions, including advertising inscriptions, shall be arranged in such a

in a way, that in no case affect the use of measures such as

the gauge. Mandatory labelling, with the exception of EEC type-approval marks, and

a place for placement of advertising inscriptions, shall be listed on a sample

is submitted for EEC type-approval.



7.



THE MAXIMUM PERMISSIBLE ERRORS



Measures defined in this regulation are in accordance with the accuracy of the classified into three

classes, designated I, II and III.



7.1 the maximum permissible positive or negative error,



the nominal length, or)



(b)) any other distance between any two consecutive

scale marks must be expressed in millimetres as a function of

the length in the form (a + bL), where:



-L is the length in question, rounded to the next higher whole number of

meters,



-a and b are coefficients fixed for each class of accuracy according to the

the following table:

+--------------------------------+----------+-------------+

| Accuracy class | a | b |

+--------------------------------+----------+-------------+

| I |0,1 |0,1 |

|II |0,3 |0,2 |

| III |0,6 |0,4 |

+--------------------------------+----------+-------------+



7.2.1 the maximum permissible positive or negative error in the length of the interval i

not exceeding 1 cm shall be fixed for each class of accuracy according to

the following table:

+------------------------------+--------------------------+

| Even the reference length scale | The maximum permissible error |

| | (in mm) for the class of accuracy |

+------------------------------+---+-------+--------------+

| | I | (II) | (III) |

| +---+-------+--------------+

| = 1 mm and < | 0.1 | 0.2 | 0.3 |

1 mm and | < < = 1 cm | 0.2 | 0.4 | 0.6 |

+------------------------------+---+-------+--------------+



In the case of intervals exceeding 1 cm, must be the maximum permissible

error is expressed as a function of the length of the interval by the formula (a + bL) mm, where

the values of parameters a and b are equal to the values given in point 7.1 and where L is

the length in question, rounded to the nearest whole higher number of meters.



7.2.2. The maximum permissible difference between the lengths i of two consecutive

tick marks whose length does not exceed 1 cm shall be fixed for each

class of accuracy according to the following table:

+-----------------------------+---------------------------+

| Even the reference length scale | The maximum permissible difference |

| | (in mm) for the class of accuracy |

+-----------------------------+-----+-----+---------------+

| | I | (II) | (III) |

| +-----+-----+---------------+

|i