Requirements Relating To Bottles Used As Measuring Containers

Original Language Title: požadavky týkající se lahví používaných jako odměrné obaly

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Read the untranslated law here: https://portal.gov.cz/app/zakony/download?idBiblio=49703&nr=331~2F2000~20Sb.&ft=txt

331/2000 Sb.



DECREE



The Ministry of industry and trade



of 6 May 1999. September 2000,



laying down the requirements relating to bottles used as measuring

containers for prepackaged goods



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")

to implement section 9a of the law:



§ 1



(1) this Decree lays down the requirements on bottles used as measuring

packaging (hereinafter referred to as "bottles"), which must be satisfied only if the manufacturer

It intends to, at its option to label the bottle with the symbol "e".



(2) Cylinders that meet the requirements of this order can be marked

the symbol "e", whose graphic representation set out in annex 3 to this

the Decree.



§ 2



The cylinder must be made of glass or any other material,

that has such rigidity and stability that it offers the same metrological

guarantees as glass. The cylinder must satisfy the following conditions:



and are provided with a stopper or) structurally made so that they can be

provided with a stopper,



(b)) are intended for the storage, transport or delivery of liquids,



(c)) have a nominal capacity from 0.05 litres in 5 litres inclusive, and



(d)) have metrological characteristics (design characteristics and

uniformity of manufacture) such that they can be used as bottles, i.e.. When

are filled to the specified level or to a specified relative

part of the volume, the percentage of justified their volumes can be

measured with sufficient accuracy.



§ 3



Additional requirements on bottles and methods of their implementation are listed in the annex

No 1 to this notice.



§ 4



(1) the marking requirements of the bottles with the symbol "e" are set out in annex 1 to the

This Decree.



(2) the cylinder on which is located the symbol "e" must be subject to

metrological inspection by the Czech metrology institute ^ 1)

the conditions that are specified in annexes 1 and 2 to this

the Decree.



§ 5



This Decree shall enter into force on 1 January 2000. July 2001.



Minister:



doc. Ing. Gregr, r.



Č. 1



REQUIREMENTS FOR BOTTLES



1.



The bottles are characterized by the following capacities which are always

specified for a temperature of 20 ° C:



1.1 nominal capacity Vn is the volume that is marked on the bottle; It's

the volume of liquid, which is assumed to be contained in a bottle when it is

bottle filled in accordance with the terms and conditions of use for which it is intended;



1.2 the brim capacity bottle is the volume of liquid that the bottle contains,

When it is filled to the brim;



1.3 the actual volume of the cylinder is the volume of the liquid that is in the bottle in the

fact included when it is filled exactly under the conditions in theory

corresponding to the nominal capacity.



2.



There are two methods of filling a bottle:



(1) to a constant level,



(2) to a constant vacuity.



The distance between the theoretical level of performance on the nominal value and

the surface of the filling to the brim to brim capacity, and the difference between

aligned volume and nominal volume, known as an expansion volume or

the volume of empty space, obviously must be constant for all

bottles of the same type, that is, for all the bottles that were made

According to the same design.



3.



To facilitate compliance with the abovementioned requirements while respecting the usual

uncertainties in the performance, for the purpose of measuring the volume of the contents of the bottles with the appropriate

precision and in particular with the accuracy that is required by regulations

applicable to prepackages shall be permissible deviation (positive

or negative) the volume of the cylinder, i.e.. the greatest differences permitted (positive or

negative) at a temperature of 20 ° C and in terms of the checks that are

listed in annex No. 2, between the actual capacity and the nominal capacity Vn

in the following table:

------------------------------------------------------------------

The nominal capacity Vn Greatest tolerance

in millilitres as% of Vn in millilitres

------------------------------------------------------------------

from 50 to 100-3

from 100 to 200 3-

from 200 to 300-6

from 300 to 500 2-

from 500 to 1 000-10

from 1 000 to 5 000 1-

------------------------------------------------------------------



The largest, the tolerance for the brim capacity shall be the same as the

the largest, the tolerance for the corresponding nominal capacity.



The systematic exploitation of tolerances is not allowed.



4.



In practice, the actual volume of the check must be carried out so that the bottles are

shall determine the quantity of water at a temperature of 20 ° C that the bottle actually contains,

when filled to the level theoretically corresponding to the nominal capacity.

Control can also be made an indirect way a method whose

accuracy is equivalent to.



5.



Each cylinder manufacturer must submit a symbol by which it can be

identified, the Bureau of standards, metrology and

testing (hereinafter referred to as "the authority") for the purpose of approval. If the Office symbol

approve, he shall within one month inform the other competent

orgány2). The manufacturer shall, on his own responsibility, affix the bottles

the symbol "e". This symbol must be at least 3 mm high.



6.



Statistical inspection must be carried out in accordance with the principles of

acceptance sampling methods used. The effectiveness of acceptance must be

comparable to the effect of the reference method specified in annex No. 2.



7.



This Decree is without prejudice to the competence of supervisory and other bodies

the State Government provided for by the law.



8.



Bottle shall bear the following indelible, easily legible and

visible data:



8.1 on the side, on the bottom rim or on the bottom:



8.1.1 the indication, which indicates its nominal capacity in litres, centilitres

or ml, digits at least:



-6 mm high, if the nominal volume is greater than 100 cl;



-4 mm high if the nominal volume is equal to or less than 100 cl but

greater than 20 cl; and



-3 mm, if the nominal volume of not more than 20 cl.



For this indication is followed by the symbol for the unit of measurement used or where it

It is appropriate, the drive name under a special legal předpisu4);



8.1.2 the tag that identifies the manufacturer as prescribed in point 5;



8.1.3 the symbol prescribed in paragraph 5;



8.2 on the bottom or on the bottom rim, in such a way that does not cause

disorientation in relation to the abovementioned data, the figures of the same

the minimum height, such as numbers, which is given the appropriate

nominal capacity, according to the method or methods of filling for which the bottle is

designed for:



8.2.1. an indication, which indicates the brim capacity expressed in centilitres and

is not accompanied by the symbol cl,



8.2.2 or an indication, which indicates the distance in millimetres from the surface

the brim level filling the corresponding to the nominal capacity,

This is followed by the symbol mm.



Additional information may be listed on the bottle, provided that they do not cause

disorientation in relation to the mandatory data.



Č. 2



PROCEDURES OF METROLOGICAL CONTROL



This annex lays down the procedures for the statistical inspection of bottles to verify

compliance with the requirements of section 4 and part 6 of Annex No. 1.



1.



METHOD OF SAMPLING



A selection of bottles of the same design and production will be removed from the levy,

which basically corresponds to the hour's production.



If the result of selective control of benefit corresponding to the hour's production

is not acceptable, you may make a second test based either on another

selection of dose corresponding to production in the longer term, or where

production was under the control of recognized by orgánem2), on the

based on the results recorded on the inspection sheets manufacturers.



The number of bottles that make up the random selection must be 35 or 40; Depending on the

which of the two methods detailed below in section 3, was elected

competent orgánem2) for the processing of the results.



2.



MEASUREMENT OF THE VOLUME OF THE CYLINDERS THAT MAKE UP THE RANDOM SELECTION



The cylinder must be considered empty.



The bottle is filled with water at a temperature of 20 ° C, the density is known to

the corresponding level control method used.



Then gradually weighed filled with bottles, and each value is xji

It records.



Control measurements shall be carried out using a set gauge that is

suitable for effecting the necessary operations.



Measurements of the volume shall not exceed one fifth of the world's largest

permissible deviation corresponding to the nominal capacity of the cylinder.



3.



USE OF SELECTIVE CONTROL



3.1 the use of methods based on the selective standard deviation



The selection range is 35.



3.1.1 shall be calculated (see 3.1.4.):



-

3.1.1.1 sample diameter x actual volumes xi bottles in

the selection;



3.1.1.2. the estimation of the standard deviation s actual volumes xi bottles in a batch.



3.1.2 Furthermore shall be calculated:



3.1.2.1 the upper limit Ts: the sum of the indicated capacity (see annex No.

1, section 8) and the maximum permissible deviation corresponding to this capacity.



3.1.2.2 the lower limit Ti: the difference between the indicated capacity (see

Appendix 1, section 8) and the maximum permissible deviation of the corresponding

This capacity.



3.1.3. Acceptance criteria:



The dose must be declared to conform to this Decree,

-

If the numeric values of the x and at the same time meet these


the three inequalities:



-

x + k. = T, with <

with



-

x-to. with > = T,

(I)



with < = F (T-T)

with i



where k = 1.57 and F = 0.266.



-

3.1.4 calculate the sample average of x and estimate STD

deviations with the benefits:



Calculations are performed according to the following formulas:

-the sum of the actual volume of measuring 35 x = sum of x,

(I)

the sum of x

- i

-Select the diameter measuring 35 x =-------,

35



2

-the sum of squares of x, 35 sum measurement

(I)



2

-the square of the sum of 35 measurements (sum of x)

(I)



1 2

and then----(sum of x),

35 i



2 1 2

-the difference of the sum of SC = sum of x-----(sum of x),

even 35 even



-variance estimation of the actual volumes of the cylinders in the batch



SC

nu =--

34



an estimate of the standard deviation – hence the actual volumes

bottles in a dose of s = square root of Nu.



To facilitate the calculation of sample characteristics, it is recommended

use for example. pocket calculators with the statistical utility

(and for the calculation of the standard deviation of the sampling use the button

With, or sigma).

n-1, n-1



3.2 using the method based on the average margin



The selection range is 40 bottles.



3.2.1 shall be calculated (see 3.2.4):



-

3.2.1.1. sample diameter x actual volumes xi bottles in

the selection,



-

3.2.1.2 average margin R actual volumes xi bottles

in the selection.



3.2.2 Furthermore shall be calculated:



3.2.2.1 the upper limit Ts: the sum of the indicated capacity (see annex No.

1, section 8) and the largest tolerances corresponding to this capacity.



3.2.2.2. The lower limit Ti: the difference between the indicated capacity (see

Appendix 1, section 8) and the greatest tolerance matching

This capacity.



3.2.3 Acceptance criteria:

The dose must be declared to conform to this Decree,

- -

If the numeric value of x and R meet at the same time these

the three inequalities:



- -

x + k ' = Ts, R <



- -

x-k ' R > = Ti,



-

= F ' R < (Ts-)



where k ' = 0.668 and F ' = 0.628.



- -

Calculation of the sample average of x and the average margin of R for

40 bottles in the selection and for a range of subsets of 8:

-



-

3.2.3.1. The value of x is obtained by the following procedure:



-the sum of the actual volume of measuring 40 x = sum of x

(I)



the sum of x

- i

-Select the diameter of these 40 measurement x =-------.

40



-

3.2.3.2. The value of the average margin R is obtained by

the procedure:



A selection in chronological order with

be divided into 8 subgroups, which is

five bottles.



Another calculation is performed in the following steps:



-for each subset of the down selection margin

i.e.. the difference between the measured real greatest

and the smallest of the five bottles in the capacity of a given subset;

This gets the 8 values range: R1, R2, ..., the R8;

-the sum of the margin eight subgroups



sum R = R + R + ... + R.

I 1 2 8



-1

Thus the average margin of R =--a sum of R.

8 i



Č. 3



Graphic design of the symbol "e" for labeling bottles used as measuring

containers for prepackaged goods



The grid is not part of the symbol. Is used as an aid to determine the dimensional

the symbol.



1) section 14 of Act No. 506/1990 Coll., on weights and measures, as amended by Act No.

119/2000 Sb.