CELEX: 51979PC0567
Language: en
Date: 1979-10-24
Title: PROPOSAL FOR A COUNCIL DIRECTIVE AMENDING ANNEX II (2) TO DIRECTIVE 72/276/EEC ON THE APPROXIMATION OF THE LAWS OF THE MEMBER STATES RELATING TO CERTAIN METHODS FOR THE QUANTITATIVE ANALYSIS OF BINARY TEXTILE FIBRE MIXTURES (presented by the Commission to the Council)

ARCHIVES HISTORIQUES
DE LA COMMISSION
COLLECTION RELIEE DES
DOCUMENTS "COM"
COM (79) 567
Vol. 1979/0197
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In accordance with Council Regulation (EEC, Euratom) No 354/83 of 1 February 1983
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 ---pagebreak--- COMMISSION OF THE EUROPEAN COMMUNITI
                                          COM(79 ) 567 final
                                          Brussels . 24th October 1979
                    PROPOSAL FOR A COUNCIL DIRECTIVE
            AMENDING ANNEX II ( 2 ) TO DIRECTIVE 72 / 276 / EEC
                ON THE APPROXIMATION OF THE LAWS OF THE
               MEMBER STATES RELATING TO CERTAIN METHODS
                FOR THE QUANTITATIVE ANALYSIS OF BINARY
                        TEXTILE FIBRE MIXTURES
             ( presented by the Commission to the Council )
 C0M(79 ) 567 final
 ---pagebreak---                         PROPOSAL FOR A COUNCIL DIRECTIVE
                        AMENDING ANNEX II , 2             . . . - -
                        TO        DIRECTIVE 72 / 276 / EEC    "
                        ON THE APPROXIMATION OF THE LAMS OF THE
                        MEMBER STATES RELATING TO CERTAIN METHODS
                        FOR THE QUANTITATIVE ANALYSIS OF BINARY
                               TEXTILE FIBRE MIXTURES
 EXPLANATORY MEMORANDUM
 In order to remove technical barriers to trade and provide consumers with
essential information on textiles / Council Directive 71 / 307 / EEC of
26 July 1971 makes provision for the mandatory labelling of the quantitative
and qualitative fibre composition of textile products .
                      »
As compliance with this general obligation is monitored by means of analysis ,
it is essential that the methods of analysing the various mixtures on the
market be harmonized ; that is why Article 13 of the abovementioned Directive
specifies that : " Separate directives will specify the sampling and
                               <•
analysing methods to be used in all Member States to determine the fibre
composition of products covered by this Directive ".
Consequently an initial Council Directive ( 72 / 276 / EEC ) was adopted on 17 July
1972 and contains in an Annex harmonized methods of analysis for 13 binary
mixtures corresponding to some of the most widespread textile products on
the market .
The - list of methods laid down in the abovementioned Directive is not / however /
exhaustive and must gradually be supplemented by harmonized methods of
analysis for other textile products consisting of binary mixtures that are
on the market .
This Directive is therefore a first addition to Directive 72 / 276 / EEC .
Its Annex contains methods of analysis for two important products that
have recently appeared on the market . -s products composed of binary mixtures
containing polypropylene fibrs and containing chlorof ibres .
                                                                        ./..
 ---pagebreak---                                     -2 -
These methods , numbered 14 and 15 , have been prepared by the Commission 's
Technical Working Party on textile names and labelling ( analysis ) on the
basis of ISO methods Nos 15 and 16 ( International Standard ISO 1833 / 1977 ,
Second Edition ) after numerous interlaboratory tests .
An early date is envisaged for the entry into force of the provisions of
national law necessary for the implementation of this Directive : indeed ,
these measures concern only a limited nunber of national laboratories .
 ---pagebreak---                                        - 3 -
 THE COUNCIL OF THE EUROPEAN COMMUNITIES ,
Having regard to the Treaty establishing the European Economic Community ,
and in particular Article 100 thereof ,
Having regard to the proposal from the Commission ,
Having regard to the opinion of the European Parliament ,
Having regard to the opinion of the Economic and Social Committee ,
Whereas        Council Directive 71 / 307 / EEC of 26 July 1971 on the approxi­
mation of the laws of the Member States relating to textile names ( 1 )
 lays down      provisions on the mandatory labelling of the fibre compo­
sition of textile products ;
Whereas , pursuant to Article 13 of the above mentioned Directive 71 / 307 / EEC , Counc :
Directive 72 / 276 / EEC of 17 July 1972 on the approximation of the laws of                 i
the Member States relating to certain methods for the quantitative analysis                 '
of binary textile fibre mixtures ( 2 ) lays down thirteen uni form. methods of ana -        !
lysis for most of the textile products composed of binary mixtures that                    i
are on the market ;                                           \
Whereas textile products consisting of polypropylene fibres and certain
other fibres and products consisting of chlorofibres based on homopolymers
of vinyl chloride and certain other fibres which are also subject to the
labelling obligation provided for irr Directive 71 / 307 / EEC , are not             -    I
                                                                                          t
covered by the above mentioned Directive 72 / 276 / EEC , and consequently
uniform methods of analysis applicable to these products should be
                                                                                           i
establi shed ;                                              '                               i
( 1 ) 0J No L 185 , 16.8.1971 , p. 16                                                     j
( 2 ) 0J No L 173 , 31.7.1972 , P. 1 -    '
                                                                                          t
                                                                                ,  ■      r
                                                                                        . )
                                                                          ./.
 ---pagebreak---  HAS ADOPTED THIS DIRECTIVE :
                                                                     \
                                  Article 1        .
Special methods Nos 14 and 15 set out in the       Annex to this Directive are
 hereby added to Annex 11(2 ) of Council Directive 72 / 276 / EEC .
                                  Article 2
 1 . Member States shall bring into force the provisions necessary to comply
     with this Directive within one year of its notification .      They shall for
     with inform the Commission thereof .
 2 . As soon as this Directive has been notified , Member States shall also
     ensure that the Commission is informed , in sufficient time for it to
     submit its comments , of any draft laws , - regulations or administrative
     provisions which they intend to adopt in the field covered by this
     Di recti ve .
                                  Article 3
 This Directive is addressed to the Member States .
 ---pagebreak---                                       ANNEX
                      METHODS FOR QUANTITATIVE ANALYSIS OF
                         CERTAIN BINARY FIBRE MIXTURES
                                                           s
                                      'METHOD N O . 14
             POLYPROPYLENE FIBRES AND CERTAIN OTHER FIBRES
                                  ( Xylene method )
1.   FIELD OF APPLICATION
     This method is applicable , after removal of non-fibrous matter , to
   . "binary mixtures of                                              -
      1 . polypropylene fibres ( 3l)
          with     •      '     '        i
      2 . wool'(l ) animai hair (2 and 3 ) siile ( 4 ), cotton ( 5 ), acetate ( 17 ) ,
          cupro ( 19 )» modal ( 20 ), triaoetate ( 22 ), viscose ( 23 ),
          acrylic '(24 ), nylon ( 28), polyester ( 29 ), and glass fibres ( 38 ).
2.   PRINCIPLE              ;                       •  '            -
     The polypropylene fibre is dissolved from a known dry mass of the
     mixture with boiling, xylene . The residue is collected, washed, dried
     and weighed ; its mass , corrected if necessary, is expressed as a per­
     centage of the dry mass of the mixture . The percentage of polypropyle­
     ne is found by difference .
3 . APPARATUS AND REAGENTS ( other than those specified in the " general
     instructions )
     3.1 » Apparatus
             i ) Conical flasks , of minimum capacity 200 ml , glass stoppered .
             ii ) Reflux condenser ( suitable for liquids of high boiling point )
                     fitting the conical flasks i ).
     3.2 . Reagent
             Xylene distilling between 137 a-nd 141 °C .
             Note . This reagent is highly flammable and has a toxic vapour ,
           - suitable precautions must be taken in its use .
4.   TEST PROCEDURE
     Apply the method described in the general instructions , then proceed
     as follows :         -
     To the specimen contained in the conical flask ( 3»l.i ), add 100 ml
     of xylene ( 3.2 ) per gram of specimen . Attach the condenser
      ( 3.1.ii ) and bring the contents to the boil and maintain at boiling
     point for three minutes . Immediately decant the               liquid through
     the weighed filter crucible ( see note l) • Repeat this treatment
     twice more , each time using a fresh 50             portion of solvent .
 ---pagebreak---                                             - 2 -
      "uash the residue remaining in the flask successively "with 30 ml of
      "boiling xylene ( twice ), then with 75 ml of light petroleum (1 . 3.2.1 ) of the
       general part ) ( twice ). Af.ter the second wash with Light petroleum , filter
       the contents of the flask through the      crucible , transfer, any residual
       fibres to the crucible with the aid of a small quantity of light petroleum
       and allow the solvent to evaporate . Dry the crucible and residue , cool
       and weigh them .
      NOTES
      1.   The filter crucible through iirhich the xylene is to be deoanted
           must be preheated .
      2.   After the treatment with boiling xylene , ensure that the flask
           containing the residue is cooled sufficiently before the light
           petroleum is introduced .
      3.   In order to reduce the fire and toxic hazards to the operator
           a hot extraction apparatus using the appropriate procedures ,
           giving identical results , may be used ; see , for example , the
           apparatus described in Melliand Textilberichte 56 ( l975 )»
           pp 643-645 .
5 . CALCULATION AND jCXPRESSION OF RESULTS
      Calculate the results as described in the general instructions .
      The value of d is 1.00 .
6 . PRECISION
      For homogeneous mixtures of textile materials , the confidence limits
   -■ of results obtained by this method are not greater than + 1 for;
      the confidence level of 95^«
 ---pagebreak---                                       ÎIETHOD N° 15
               CHLOROPIBRES ( HOKOPOLYMERS OP VINYL CHLORIDE)
                     AND CERTAIN OTHER FIBRES               "
                      ( Concentrated sulphuric acid method )                  -   '
1.   FIELD OF APPLICATION
     This method is applicable , after removal of non-fibrous matter , to
    "binary mixtures of
     1 . chlorofibres ( 25 ) based on homopolymers of vinyl chloride
          ( after-chlorinated or not ) .
          with
     2 . cotton ( 5 )» acetate ( 17 ), oupro ( 19 )» modal ( 20 ),
          triacetate ( 22 ), viscose ( 23 ), certain acrylic ( 24 ), certain
       - modacrylic fibres ( 27 ), nylon ( 28 ) and polyester ( 29 ).- The
          modacrylics concerned are those which give a limpid solution when
        , immersed in concentrated sulphuric acid ( relative density I . 84
          at 20°C ) .                     .
          This method can be used in place of Methods 8        or 9 .
2.  PRINCIPLE
    The constituent other than .the chlorofibre ( i.e. the fibres mentioned
    under point 2 of § 1 ) is dissolved from a known dry mass of the mixture
     with concentrated sulphuric acid (p20=1.84 g / ml ). The residue , consist­
     ing of the chlorofibre , is collected , washed , dried and weighed ; its
    mass , corrected if necessary , is expressed as a percentage of the-dry
    mass of the mixture . The percentage of the second constituent is ob­
    tained by difference .
3 . APPARATUS AND REAGENTS ( other than those specified in the general
     instructions )
    3.1 . Apparat us                                                                -
             i ) Conical flask, of minimum capacity 200 ml , glass stoppered .
             ii ) Glass rod with flattened end .
    3.2 . Reagents                  .                                         '
             i ) Sulpl-mric acid, concentrated (p 20 = I . 84 g/ml)
             ii ) Sulphuric acid, 50% ( m/m) approximately .
                   Prepare by adding carefully, while cooling, 400 ml of
                   sulphuric acid ( g20=1.34 g/ml ) to 500 ml of distilled or
                   deionised water .   After cooling to room temperature , dilute
                   the solution to 1 litre with water .
             iii ) Ammonia, dilute solution.
                   Dilute 60 ml of oonoentrated ammonia solution ( 020=0- 880g/nl )
                   to 1 litre with distilled water .
                                                                         /
 ---pagebreak---                                    -2-
4.    TEST PROCEDURE
      Follow "the procedure specified in the general instructions , then
      proceed as follows :
      To the specimen contained in the flask ( 3.1.i ) add 100 ml of
      sulphuric acid ( 3.2 . i ) per gram of specimen .
      Allow . the contents of the flask to remain at room temperature
      for 10 min , and during that time stir the test specimen occa­
      sionally by means of the glass rod . If a woven or knitted fabric
      is being treated , wedge it between the wall of the flask and the
      glass rod and exert a light pressure in order to separate the
      material dissolved by the sulphuric acid . _
      Decant the liquid through the weighed filter crucible . Add
      to the. flask a fresh portion of 100 ml of sulphuric acid
   . ( 3.2 . i ) and repeat the same operation . Transfer the contents
      of . the flask to the filter crucible and transfer the fibrous
      residue there with the aid of the glass rod .     If necessary,
      add a little concentrated sulphuric acid ( 3.2 . i ) to the flask
      in order to remove any fibres adhering to the wall .     Drain the s
    - filter crucible with suction ; remove the filtrate by emptying
      or ehanging the filter-flaslc , wash the residue in the
      crucible successively with 50fo sulphuric acid solution ( 3.2.ii ),_
      distilled or deionized water ( 1-3-2-3 of the general part ), ammonia
      solutiorv ( 3.2.iii ) and finally wash thoroughly with distilled or
      deionized water , draining the crucible with suction after each
      addition . ( Do not apply suction during the washing operation , but
      only after the liquid has drained off by gravity .)
■     Dry the crucible and residue , cool and weigh them .
5.    CALCULATION AND EXPRESSION OP RESULTS                          .
      Calculate the results as described in the general instructions . -
      The value of d is 1.00 .                                  ^
6.    PRECISION
      For homogeneous mixtures of textile materials , the confidence -
      limits of results obtained by this method are not greater than       >
      + 1 for the confidence level of 95$*