C z e c h  M e t r o l o g y  I n s t i t u t e  
Okružní 31,  638 00  
Brno  
 
1. ------IND- 2014 0026 CZ - EN- ------ 20140129 --- --- PROJET 
Executive summary for EC  (not part of this legal regulation ) 
Measuring instruments for measuring the length of wound goods are placed on the market and put 
into use  in the Czech Republic in acc ordance with Directive 2004/22/EC (Measuring Instruments 
Directive MID).  They are subject to national metrological regulation – validation ( within set 
deadlines ). The subject of this notified regulation is only the verification of measuring instruments 
already in use. The regulation does not concern placement on the market or putting into use (except in 
the cases referred to in Article 23 of the MID).  
Requirements applicable to these measuring instruments in use are fully compatible with the MID  
Some param eters specified here are properties of a measuring instrument as new and are only set out 
here because maintaining them in use is subject to a visual or other control within the framework of 
verification.  
(End of executive summary .) 
 
 
 
 
 
The Czech Metrolo gy Institute (hereinafter "CMI"), as the authority with material and territorial 
jurisdiction in the laying down of metrological and technical requirements for the measuring instrument 
in question and the laying down of test methods for type approval and f or verification of the measuring 
instrument in question in accordance with Section 14(1) of Act No 505/1990 on metrology, as amended 
(hereinafter the "Metrology Act" ), and in accordance with Section 172 et seq. of Act No 500/2004, the 
Code of Administrati ve Procedure, as amended (hereinafter the "CAP"), initiated ex officio on 22. 11. 
2013 an administrative procedure pursuant to Section 46 of the CAP, and on the basis of documentation 
hereby issues this:  
 
 
I. 
GENERAL MEASURE  
Number:  0111 -OOP -C036 -13 
Refere nce No  0313/007/13/Pos.,  
 
laying down the metrological and technical requirements for the measuring instruments in 
question, including test methods for verification of the measuring instruments in question:  
‘measuring instruments  for measuring the length o f wound goods’  
 
This general measure lays down the metrological and technical requirements for instruments for 
measuring the length of wound goods  which apply in the course of their verification following General Measure No 0111 -OOP -C036-13 
2 placement on the market or putting into use. These requirements are in accordance with the 
requirements of Government Regulation No 464/2005 laying down technical requirements for 
measuring instruments1 ), as amended (hereinafter the "Government Regulation on Measuring 
Instruments").  
For instruments for me asuring the length of wound goods whose type was approved in accordance 
with the Metrology Act in the amended version effective up to 30 October 2006, i.e. prior to the 
implementation into Czech law of Directive 2004/22/EC of the European Parliament and of  the 
Council, as amended, validation is subject to the metrological requirements which applied  when said 
measuring instruments were placed onto the market, unless this General Measure states otherwise.  
1   Basic concepts  
For the purposes of this general me asure, the terms and definitions pursuant to VIM and VIML2 ) 
apply, as well as the following terms and definitions  
1.1 
measuring instruments for measuring the length of wound goods   
serve to determine the length of any kind of wound material (such as strin g, cable, wire, fishing line, 
thread, textiles, bands of materials)   
1.2 
rolling meter   
measuring instrument which measures length by rolling a measuring wheel or measuring rollers which 
are in direct contact with the material being measured  
1.2.1  
metering  measuring instrument   
rolling measuring instrument for incrementally metering out  defined identical  lengths of measured 
material  
1.3 
folding measuring instrument   
measuring instruments with which the textile is folded into sections (layers) of the same le ngth, 
thereby determining the length of the textile, except the final incomplete section, which must be 
measured with a line length gauge   
winding measuring instrument (yarn winder)  
determines length by winding the measured material on a rotating stand (s uch as a yarn winder) with a 
circumference of 1 m; the stand’s angle of rotation is the scale for length and is converted into 
evaluation units which indicate the number of revolutions; the resulting length of the wound material 
is the product of the numbe r of revolutions and the circumference of the winder; the incomplete wind 
of the final revolution must be measured with a line length gauge.  
machine measurement   
length of the material measured , determined by a measuring instrument and read on an evaluatio n unit   
                                                   
1 ) This Government Regulation implements  Directive 2004/22 /EC of the European  Parliament and of the 
Council of 31 March 2004 on measuring instruments, as amended, into Czech legislation.  
2 ) International Vocabulary of Metro logy  - Basic and General Concepts and Associated Terms (VIM) and the 
International Vocabulary of Terms in Legal Metrology (VIML) form part of the technical harmonisation volume 
"Terminology in the Field of Metrology "publicly accessible at www.unmz.cz  General Measure No  0111 -OOP -C036 -13 
3 table measurement   
The actual length of a measured material, determined by measuring using a reference steel measuring 
tape 
1.7 
measurement error    
the difference between machine and table measurement  
1.8 
evaluation unit ( indicator device , counter)   
device for indicating the length of the machine measurement in the relevant units of measurement or , 
in the case of metering measuring instruments, for indicating  the number of lengths metered out (if the 
same length is measured, it is considered to be a repeating  indicator device ) or with a winder, or the 
number of complete sections with a folding measuring instrument  
NOTE: The evaluation unit may be analogue or digital.   
2   Metrological requirements  
The metrological requirements are based on the requir ements of the Government Order on Measuring 
Instruments .  
For measuring instruments whose type was approved in accordance with the Metrology Act, validation 
is subject to the same metrological requirements which applied when said measuring instruments were  
placed onto the market, unless this General Measure states otherwise.  
2.1   Specified operating conditions  
The manufacturer of the measuring instrument establishes the operating conditions and testing is 
conducted at the ambient temperature in the scope o f said conditions.  
2.2   Maximum permissible error  
2.2.1    Rolling and folding measuring instruments  
Rolling and folding measuring instruments are divided into three accuracy classes according to 
metrological parameters.  The maximum permissible errors duri ng follow -up validation, corresponding 
to the individual groups, are specified in Table 1 as a percent age of the measured length; if the 
maximum permissible error value in per  cent is lower than the multiple Lmin (the minimum measurable 
length established by the manufacturer) specified in the Table, the multiple Lmin shall apply as the 
maximum permissible error,  
Table  1 – Maximum permissible errors for rolling and folding measuring instruments  
Accuracy class  Maximum permissible errors   
I 
II 
III ±0.125  %, but not lower than 0.005 Lmin  
±0.25  %, but  not lower than 0.01 Lmin  
±0.5 %, but not lower than 0.02 Lmin  
 
2.2.2    Winding measuring instruments   
The actual effective circumference of a winder may not differ from its nominal value of Unom = 1 m by 
more than  
6 mm. General Measure No 0111 -OOP -C036-13 
4 2.3   Additional equipment  
Devices for setting to zero  or setting to a known initial length may not cause an error which would 
exceed the maximum permissible error pursuant to Table 1 at a minimum measurable length of Lmin.  
The difference between the length displayed on an indicator and the length displayed on repeating 
indicator  devices  pursuant to Article 1.9 may not exceed the smallest graduation of the evaluation unit.  
If printer and indicator devices are used, the length indicated and the leng th printed must be identical.  
If other additional (supplementary) devices are used, said device may not affect the measurement 
accuracy.  
3   Technical requirements  
The technical requirements are based on the requirements of the Government Regulation  on 
Measuring Instruments.  
For measuring instruments whose type was approved in accordance with the Metrology Act, validation 
is subject to the same technical requirements which applied when said measuring instruments were 
placed onto the market, unless this Gene ral Measure states otherwise.  
3.1   Winding measuring instruments  
The device must ensure that  measuring wheel (roller) rolls smoothly without slipping  by the value 
corresponding to the previous length of the material measured passes through the measuring 
instrument smoothly, without gathering on one side.  
For textiles, it holds true that the device must indicate the value of the length of the piece of material 
in question at the time of measuring (table measurement), as long as the textile is lying freely a nd 
uncrumpled on the horizontal surface without being stretched . 
In order to eliminate errors caused by ductility  when measuring textiles , the measuring instrument 
must ensure that the textile being measured:  
a) is sufficiently free when being guided to the m easurement wheel (roller),  
b) is measured in a state in which it is not under tension,  
c) is removed from the measurement wheel (roller) in an even and uniform manner.  
Instruments for measuring easily ductile  materials must be equipped with a release device to regulat e 
the tension of the material being measured at the point of measurement.   
The device must have a fixed mark on the fixed part of the stand (frame) which serves as the initial 
(beginning of measurement ) and end mark (end of measurement) or two separ ate marks, of which one 
serves as the initial mark and the other as the end mark.  The distance between the two marks along 
the material measured may be 100 mm or an entire multiple of the length, although it may not be 
greater than 1 m.  It is acceptable f or this distance to be added to the measurement result.  A folding 
device only has the initial mark.  
If the measurement result depends on the thickness, surface quality and/or dispenser type (in a large 
roll, for example) of the material measured, then the suitable limit must be determined by the 
manufacturer.   
A metering measuring instrument  must have a device which stops it as soon as the required length of 
measured material has been metered out .  This device must be adjustable for any desired length.  If it is 
necessary to replace any kind of parts to set the length, then said parts must be marked with the 
measuring instrument’s serial number.  The evaluating unit counts the pieces measured and may also 
indicate  the entire length of the measured material.  General Measure No  0111 -OOP -C036 -13 
5 3.2   Folding measuring instruments:  
The correct length of the sections must be 1 m, unless specified otherwise.  
Instruments for measuring textiles thicker than 1 mm must have a device for adjusting the travel of the 
folding bars which regulates the correct loading length (of the sections) for the given textile thickness.  
An instrument without such a device must be marked:  ‘Only for measuring textiles up to 1 mm thick.’  
If this fitting device is operated manually, there must be a safety device on the machine which only 
allows the machine to be started if the instrument is set to the correct thickness of the textile being 
measured.  
The evaluation unit must count complete sections and must have a resetting device  and a mark reading 
‘Number of sections.’  
The inst rument must allow the material to move backward in the event that visual quality control of 
the measured material is necessary.  
The starting, stopping and backward motion of the measured material must be smooth and continuous 
and free of grinding and impac ts. In the case of instruments equipped to change speed, a test in 
operation must be conducted to determine the optimal speed for each material.  
3.3   Display equipment  
3.3.1    General  
Indicator  device s must provide a direct, secure, simple and unambiguous  means of indicating the 
measured length.   
a) The connection between the indicat or device and measuring device may not exhibit any play 
and may not slip.  
b) Indicator devices on measuring instruments must be connected to the wheels or rollers by such 
a means tha t said devices indicate a declining length in the event that the operator deliberately 
or as a result of an incorrect action moves the object being measured backward or uses the 
instrument in the opposite direction of the normal direction of use.  
c) The indic ator device must have a resetting device . 
d) An indicator device which records  the number of pieces metered out  or the number of whole 
sections must record the applicable numbers of pieces or sections immediately before the 
measurement of the piece is ended or before the section  is positioned . 
3.3.2    Analogue indicator  device s  
An analogue indicator device meets  the following requirements:  
a) the distance between the indicator and the unit indicated must be less than 2 mm,  
b) rollers (elements) which record values of less than 1 m must marked with a different colour 
(such as red) than the other ones, or the indication unit’s viewing aperture must have a 
coloured border at the location of the elements with tenths of a metre, and  tenths of a metre 
must always be sepa rated by a decimal point,   
c) dividing lines and numeric markings must be rendered in a permanent and easily noticeable 
manner.  
3.3.3    Digitals indicator  device s 
The labelling of the units of measurement must be marked or built in on the right side of the nu meric 
data.  
3.3.4    Graduation of the indicator  
The value of the smallest graduation on the indicator device may not be less than 1 mm.  General Measure No 0111 -OOP -C036-13 
6 3.4   Measuring instrument security and fraud prevention  
Instruments must be adequately secured to prevent fraudulent u se. Components which the user is not 
allowed to disassemble or adjust must be secured to prevent such activity.   
4   Measuring instrument markings  
4.1  Markings on the measurement device  
Instruments must be fitted with a label bearing the following informa tion: 
a) the manufacturer’s name or trademark,  
b) type mark and year of production,  
c) accuracy class,  
d) the number of the type approval certificate (if relevant),   
e) the nature and characteristics of the measured material for which the instrument in question 
can be us ed with, if necessary,  
f) value of the graduations  on the scale,  
g) minimum measurable length,  
h) maximum measurement speed,  
i) indication of the beginning and end of measurement.  
If the use of the measuring instrument requires special measures, then the essential ins tructions must 
be provided in a clear and visible manner in the immediate vicinity of the indicator device.  
A label bearing mandatory markings must be secured (by a seal, for instance) or must be impossible to 
be removed without being destroyed.   
4.2   Placement of the official seal  
Seal placement is specified  by the type approval certificate or EC certificate of type testing or other 
document or implement applied in the conformity assessment during placement on the market and 
introduction into service.  
Official seals  must be placed in such a manner as to prevent the measuring instrument from being 
adjusted without damaging the seals  and to prevent access to components which are not allowed to be 
accessed.   
5   Measurement device type approval  
Measuring inst ruments for measuring the length of wound goods are placed on the market and put into 
use with a conformity assessment in accordance with the Government Regul ation on Measuring 
Instruments and thus are not subject to type approval.  
6   Initial validation  
These measuring instruments are placed on the market and put into use with a conformity assessment 
in accordance with the Government Regulation on Measuring Instruments.   
Initial validation applies only to measuring instruments that at the given time have a  valid type 
approval certificate with application of the transitory provisions pursuant to Section 9 of the 
Government Order on Measuring Instruments, and to the validation of measuring instruments 
following repairs.   General Measure No  0111 -OOP -C036 -13 
7 A procedure identical to the follow -up validation pursuant to Chapter 7 is applied during the initial 
validation.  
7   Follow -up validation  
7.1   General  
7.1.1    Overview of tests conducted  
The following activities and tests are conducted during the follow -up validation  (i.e. each validation of  
the measuring instrument conducted after the previous validation)  and during validation pursuant to 
Section 11 Paragraph 4 of the Metrology Act:  
– visual inspection,  
– test of correct measuring instrument operation,  
– test of evaluation unit operation,  
– accuracy  test. 
7.1.2    Testing equipment  
The following measuring instruments are used for the tests:  
a) steel measuring t ape at least 10 m long, with a graduation value of 1 mm along the length of 
the first decimetre and with a graduation value of 0.01 m along its en tire length, with a 
maximum permissible error of ±1  mm, 
b) steel line measuring instrument  with a nomi nal length of 1 020 mm, with a graduation value 
of 1 mm along its entire length, with a maximum permissible error of ±0.5  mm, The initial 
zero mark must be formed by an edge,  
c) thickness gauge with a minimum measurement range of up to 10 mm which enables reading 
with an accuracy class of at least 0.1 mm.  The diameter of the measurement surfaces must be 
at least 25 mm,  
d) shifting measuring instrument with a measur ement range of up to at least 300 mm and a 
graduation  of 0.1 mm,   
e) roll-up measuring instrument, such as a steel measuring tape  with an increment value of 1 mm.  
All measuring instruments must have valid metrological traceability . 
Furthermore, the mandatory furnishings include a measuring table for manual length management 
with a length of at least 3.5 m and a width corresponding to the minimum width of the measured 
material.  The top of the measuring table must be smooth, even and manufactured in a manner whi ch 
prevents electrostatic charges from forming,  
7.1.3    Testing conditions  
Instruments with added equipment are tested as a whole unit.  
The measuring error of a measuring instrument which has various different speeds is determined at 
two speeds, and at the  maximum and minimum operating speed.  
The measuring error of a measuring instrument for unlimited uses is determined by measuring three 
materials of varying thickness, surface and flexibility.  
The measuring error of a measuring instrument for limited uses is determined when measuring the 
material for which the instrument is intended.  
The measurement error of instruments intended for measuring double -layer textiles is to be determined 
when measuring double -layer textiles . General Measure No 0111 -OOP -C036-13 
8 Textiles intended for testing instru ments must be in a free state and must remain in the same 
environment in which the testing instrument is located for at least 24 hours.  
The lengths of the pieces of textile must be at least 20 m for rolling measuring instruments and 30 m 
for folding measur ing instruments.  
The length of a textile (as well as materials of similar characteristics) intended for testing instruments 
is to be measured manually on a table.  The length of a textile metered out  with a measuring tape (a 
length of max. 4m is recommended ) which is deemed to be the textile’s actual length is to be marked 
using a pin, stitch or other similar means.  The marking is to be applied at least 20 cm from the 
longitudinal edge of the textile.  The results of the measurement on the table are used whe n 
determining the measuring instrument’s measurement error (table measurement).  
The time interval between the completion of the measuring of the textile on the table and the 
beginning of measurement on the instrument may be no longer than 10 minutes.  
7.2   Visual inspection   
The visual inspection of a measuring instrument for measuring the length of wound goods is to 
ascertain the following:  
a) whether the instrument conforms to the approved type, the type certified by the EC or  to the 
design for which the con formity was assessed in the s cope of placement on the market,  
b) whether the coating of the measuring wheels has a consistent thickness over its entire 
circumference, is not worn or damaged and whether the measuring wheels and continuous 
belts are clean, free of threads , etc.,  
the circumference of the measuring wheel and cylindricity of the measuring roller using a 
sliding or roll -up measuring instrument by measuring the circumference of the cylinder near 
both ends and in the middle,  
c) whether the material is fe d in a straight line (in the case of rolling instruments in which the 
measuring material is fed in on a flat and even level)  
d) the legibility of the recorded information and its conformity with the unit’s indication  (in the 
case of evaluation units with reco rding equipment),  
e) whether or not the evaluation unit adds the final incomplete section  (in the case of folding 
instruments),  
f) whether continuous belts are tensioned so that the measured material is pressed to the 
measuring wheel (roller),  
g) the ease of operat ion of all moving parts,  
h) the correctness of the evaluation unit depending on the rotations of the measuring wheel 
(roller), for instance  10 rotations of the wheel or roller,   
i) whether the resetting button on the evaluation unit  is functioning correctly,  
j) whether the measuring instrument functions correctly when running forward and backward,  
k) the play of the transmission elements between the measuring wheel (roller) and the evaluation 
unit; this play may not exceed the maximum value amongst the maximum permissi ble errors.  
7.3   Test of correct operation for instruments for measuring the length of wound goods  
The proper operation of all parts of a measuring instrument is tested using measured material, and the 
following aspects are inspected in the process:  
a) for all types of instruments:  
– uniformity of operation and removal of the measured material at the place of measuring,  General Measure No  0111 -OOP -C036 -13 
9 – lateral displacement of the edges of the measured material,  
– the release device’s operation for regulating the tension at the place of measuring ,  
– operation of the blocking and guard equipment,  
– operation of the doubling device,  
– operation of the device for regulating the speed of the material measured,  
b) with rolling instruments:  
– operation of the measuring instrument before achieving working speed an d at working 
speed, when stopping and changing the direction of the measured material’s movement,  
– the operation of the metering  device by means of measuring a predetermined length of 
measured material, as well as  the operation of the stopping device,  
– opera tion of the marking device,  
c) with folding instruments:  
– operation of the feeding device on the folding bars,  
– operation of the folding bars and textile catching retainers  
d) with winders:  
– frictional resistance when the strand is being fed;  this must be negligibl e so that the measured 
material will not tear.  
7.4   Test of evaluation unit operation  
The operation of the  evaluation unit is tested with measured material, and the following aspects are 
visually ascertained at the same time:  
a) for all types of instruments:  
– the evaluation unit’s interaction with the measuring wheel (roller),  
– the evaluation unit’s interaction with the recording equipment,  
– the operation of the  evaluation unit when the direction of the measured material’s 
movement is changed,  
– the operation of t he metering  device using a predetermined length of measured material,  
– the counting of the pieces of a predetermined length  which are metered out  and the overall 
length of the measured material,  
b) with folding instruments:  
– the conformity of the evaluation uni t’s data with the actual number of sections measured,  
c) with winders:  
– the conformity of the evaluation unit’s data with a set number of winder revolutions, 
which is ascertained by comparing the set revolutions (such as 100 revolutions) with the 
revolutions m easured on the winder ( manual rotation)  or by using any kind of additional 
counter capable of reading off the number of revolutions of the winder in order to inspect 
the reading of the evaluation unit in the winder.   
7.5   Accuracy test for instruments fo r measuring the length of wound goods  
7.5.1    Accuracy test for rolling instruments   
a) the length of the piece of measured material is determined via table measurement,  
b) machine measurement of the measured material is conducted twice,   General Measure No 0111 -OOP -C036-13 
10 c) table measurement is us ed to determine the actual length of the measured material.  
The result is the average value from the measuring on the table Lp (table measurement) and the 
measuring with the measuring instrument Lm (machine measurement) for each piece of material.  When 
testing instruments equipped with a release device, one piece must be made of ductile material.  
The indication error of a measuring instrument for unlimited uses is determined using 3 pieces of 
material of at least two different thicknesses.  
The number of a r olling metering instrument ’s settings of a predetermined length which are to be 
tested is determined based on the number of possible settings pursuant to Table 2.  One of these 
measurements must be made at the smallest length which can be set.  Each setting is to be tested at 
three different speeds:  minimum, intermediate and maximum.  The measuring instrument’s 
measurement error is determined by measuring at least 10 pieces of measured material.  In the case of 
an evaluation unit which, in addition to the indiv idual lengths of the measured pieces of material, also 
indicates the overall length of the measured material, the measuring instrument’s error may not exceed 
the values specified in Table 1.  
Table 2 – Number of prescribed settings of a predetermined length  when testing metering 
measuring instruments  
Number of measuring instrument 
settings possible  Number of prescribed settings for the test  
1 1 
From 2 to 5  3 
From 6 to 10  4 
Over 10  5 
 
The data from the counters and the difference between the machine and table measurement may not 
exceed the values specified in Table 1.  
In the case of instruments with marking devices, the uniformity, legibility and regularity of the 
markings applied are to be tested.  The error of marking placement is determined based on  the length 
measuring results of a table measurement conducted on  at least five one -metre -long sections, the 
length between an arbitrary marking and the beginning, and the length between the beginning and a 
marking on the measured material.  
Measuring instrumen ts which measure the length of a material in forward and reverse operation  (such 
as inspection measuring instruments for indicating errors) are tested at maximum speed in both 
directions of motion.  Before the end of the material is reached, the instrument is to be stopped and 
aligned precisely to the ‘End of measurement’ marking, either by hand or slow motion; the reading on 
the evaluation unit is then recorded and a table measurement is conducted.  
The error of the measuring instrument’s reading when measur ing with an interruption during forward 
and reverse operation is ascertained at least three times when changing the direction of movement of 
the material.  In the process, the material is to travel at least 1 m before each measuring cycle (in 
forward and re verse operation).  
With instruments which only measure a material’s length in forward operation and allow short 
sections of material to be moved back by approximately 0.5 to 1 m during measuring (such as 
inspection machines), the machine is to be stopped at  least three times during the machine 
measurement cycle and backed up by approximately 0.5 m to 1 m.  
A measuring instrument’s absolute reading error ΔLa is determined as the difference in the results of 
measuring the length of the measured material using a measuring instrument and measured on the 
table according to the formula:  
ΔLa = Lm – Lp General Measure No  0111 -OOP -C036 -13 
11 The measuring instrument’s relative reading error L0 is deter mined  according to the formula:  
100
pp m
0LL LΔL
 
7.5.2    Accuracy test for folding instruments  
When determining the error of folding instruments, the length of a textile is measured first on the 
measuring instrument and then on the table.  
With foldi ng measuring instruments, the status and operation of the device for setting the bar’s 
measurement operation are to be ascertained based on the thickness of the textile before the reading 
error is determined.  The reading error of a measuring instrument wit h automatic bar operation is 
determined based on the thickness of the textile using two textiles of different thicknesses.   
Measuring instruments without devices for setting the operation of the bar are to be tested based on the 
textile’s thickness using a  textile which is 0.1 mm to 1 mm thick.  
The measuring instrument’s reading error is ascertained as follows:  
– the instrument is stopped after two to three sections have been placed on and the reading on 
the evaluation unit is reset,  
– the end of the final sect ion is marked as the beginning of measurement,  
– at least 20 sections are placed on and the instrument is then stopped,  
– the point where the final section folds is marked as the end of measurement,  
– the length of a section is measured using a steel length gaug e which is carefully inserted 
between individual sections in the bottom , middle and top part of a stack of sections, so that 
the end of the measuring instrument touches the inner side of the fold in the section, and the 
length of the section M is read out.  When measuring with folding instruments, it is necessary 
to check whether the length of the section M is within the limits specified in Table 3 in light of 
the textile’s thickness.   
– the textile’s length Lp is then measured on the table between the beginni ng and end of the 
measurement.   
Table 3  – Lengths of sections with folding instruments  
Textile thickness 
(mm)  Permissible length of section M (mm)  
Smallest  Greatest  
0.5 994 1004  
1.0 993 1003  
1.5 992 1002  
2.0 991 1001  
2.5 990 1000  
3.0 989 999 
3.5 988 998 
4.0 987 997 
4.5 986 996 
5.0 985 995 
 General Measure No 0111 -OOP -C036-13 
12 The actual length of the section L is calculated according to the formula:  
nLp
L
 
in which n is the number of sections between the beginning and end of the measurement.  
The size of the disper sion of the section’s length W measured with the measuring instrument is 
determined as the difference between the greatest Li max and smallest Li min value of the length of ten 
individual sections, measured with a steel length gauge according to the formul a: 
W = Li max – Li min 
The error in length of the individual sections Δ L is calculated according to the formula:  
ΔL = Ln – L 
in which Ln is the nominal section length set on the instrument.  
The length of the textile, measured with the measuring instrument , is calculated according to the 
formula:  
Lm = n Ln – C 
in which:  
n is the number of sections recorded by the evaluation unit,   
C is the length of the final, incomplete section.  
7.5.3    Accuracy test for a winding measuring instrument  
When the test is con ducted, particular attention must be paid to ensure that there is only negligible 
frictional resistance while the strand is being fed during operation of the strand winder, because the 
measured material may tear otherwise.  Only the effective circumference of the top of the winder is 
used during the test.   
The winder’s circumference U is calculated from geometric data (see Figure 1) according to the 
formula:  
U = 3D m + correction value ( bm, hm) 
in which:  
Dm is the arithmetic mean of 9 individual diameters D, measured at the centre of the winder and at a 
distance of 40 mm from both ends of the strand holders,  
bm  is the arithmetic mean of the widths b of six individual strand holders,  
hm  is the arithmetic mean of the curve heights  h at the round ends of six i ndividual strand holders,  
the correction value ( bm, hm) is the numeric figure from Table 4.  
Table 4 – Correction values  
Values in millimetres  
bm 
2.7 2.8 2.9 3.0 3.1 3.2 
hm 
0.2 1.21 1.28 1.35 1.42 1.50 1.57 
0.3 0.90 0.96 1.02 1.09 1.15 1.22 
0.4 0.70 0.75 0.80 0.85 0.91 0.96 
0.5 0.61 0.64 0.68 0.72 0.76 0.80 General Measure No  0111 -OOP -C036 -13 
13  
 
Legend  
a)  winder with strand holders  D winder diameter  
b)  strand holder  h curve height  
  b strand holder width  
Figure 1 – Winder geometry  
A repeat measurement at a minimum of 5 points e venly distributed over the entire width of the winder 
is conducted in order to determine the circumference of the winder U. The circumference of the 
winder’s roll can be determined by such means as using plastic or paper foil which is wrapped around 
the ci rcumference of the roll.  Once a marking has been made (the initial marking is analogous to the 
final one), the foil is unwrapped on a level surface (such as a chair) and measured.   
The circumference of the winder U is the arithmetic mean of the values mea sured at 5 points of the 
winder.  
8   Notified standards  
To specify metrological and technical requirements for measuring devices and to specify verification 
and type approval test methods stemming from this measure of a general nature, the CMI notifies 
Czech technical standards, other technical standards or technical documents of international or foreign 
organisations or other technical documents containing detailed technical requirements (hereinafter 
‘notified standards’).  The CMI announces a list of these  notified standards assigned to the applicable 
measure together with the General Measure by means accessible to the public (at the internet site 
www.cmi.cz).  
Compliance with notified standards or parts thereof is considered, to the extent and under the 
conditions stipulated by a measure of a general nature, to be compliance with those requirements 
stipulated by this measure to which these standards or parts thereof apply.  
 
 
II. 
G R O U N D S   
The CMI is issuing this General Measure establishing metrological  and technical requirements for the 
specified measuring instruments and testing methods during the validation of said specified measuring 
instruments for the purposes of implementing Section 24c of the Metrology Act.  
Decree No 345/2002 establishing measur ing instruments for compulsory validation and measuring 
instruments subject to type approval, as amended, classifies instruments for measuring the length of General Measure No 0111 -OOP -C036-13 
14 wound goods as measuring instruments which are subject to validation in the Second List of Specified  
Measurement Instruments in the Annex under Item 1.1.3.  
The CMI hereby issues this General Measure establishing the metrological and technical requirements 
for instruments for measuring the length of wound goods and testing methods during the validation of  
said specified measuring instruments  for the specific measuring instrument type ‘instruments for 
measuring the length of wound goods ’ for the purpose of implementing Section 24c of Act No 
505/1990 on metrology, as amended.  
This legislation (General Measur e) was notified in accordance with European Parliament and Council 
Directive 98/34/EC of 22 June 1998 on the procedure for the provision of information in the field of 
technical standards and regulations and rules on Information Society services, as amende d. 
 
 
III. 
LEGAL INSTRUCTIONS   
Legal remedies pursuant to Section 173 Paragraph 2 of the CAP may not be filed for General 
Measures.  
In accordance with the provisions of Section 172 Paragraph 5 of the Code  of Administrative 
Procedure, decisions on objections  may not be revoked, and appeals may not be raised against them.  
The General Measure’s conformity with the statutory regulations can be evaluated in the research 
procedure pursuant to the provisions of Section 94 to 96 of the Code  of Administrative Procedu re. The 
party involved may submit a motion to conduct a research procedure to the administrative body which 
issued this General Measure.  If the administrative body does not find reason to initiate a research 
procedure, it shall inform the submitter of this  fact and substantiate its reasons within thirty days.  
Rulings on the initiation of a research procedure may be issued within three years as of the General 
Measure’s entry into legal effect in accordance with the provisions of Section 174 Paragraph 2 of th e 
Code  of Administrative Procedure.  
 
 
IV. 
ENTRY INTO LEGAL EFF ECT  
This General Measure shall enter into legal effect on the fifteenth day following the date of its 
promulgation (Section 24d of the Metrology Act).  
 
 
 
 
...…………………………..............  
RNDr. Pavel  Klenovský  
General Director