ARCHIVESHISTORIQUES
DELACOMMISSION
COLLECTION RELIEEDES
DOCUMENTS "COM"
COM(79)567
Vol.1979/0197

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COMMISSION OFTHEEUROPEAN COMMUNITI
COM(79)567final
Brussels.24thOctober1979
PROPOSAL FORACOUNCILDIRECTIVE
AMENDING ANNEXII(2)TODIRECTIVE 72/276/EEC
ONTHEAPPROXIMATION OFTHELAWSOFTHE
MEMBERSTATESRELATING TOCERTAINMETHODS
FORTHEQUANTITATIVE ANALYSIS OFBINARY
TEXTILEFIBREMIXTURES
(presentedbytheCommissiontotheCouncil)
C0M(79)567final

PROPOSAL FOR ACOUNCIL DIRECTIVE
AMENDING ANNEX II,2 . . .--
TO DIRECTIVE 72/276 /EEC "
ONTHE APPROXIMATION OFTHE LAMS OFTHE
MEMBER STATES RELATING TOCERTAIN METHODS
FOR THE QUANTITATIVE ANALYSIS OFBINARY
TEXTILE FIBRE MIXTURES
EXPLANATORY MEMORANDUM
Inorder toremove technical barriers totrade andprovide consumers with
essential information ontextiles /Council Directive 71/307/EEC of
26July 1971 makes provision forthemandatory labelling ofthequantitative
andqualitative fibre composition oftextile products .
»
Ascompliance with this general obligation ismonitored bymeans ofanalysis ,
itisessential that themethods ofanalysing thevarious mixtures onthe
market beharmonized ;that iswhyArticle 13oftheabovementioned Directive
specifies that :"Separate directives will specify thesampling and
<•
analysing methods tobeused inallMember States todetermine the fibre
composition ofproducts covered bythis Directive ".
Consequently aninitial Council Directive (72/276/EEC)wasadopted on17July
1972 and contains inanAnnex harmonized methods ofanalysis for13binary
mixtures corresponding tosome ofthemost widespread textile products on
the market .
The -list ofmethods laid down intheabovementioned Directive isnot/however /
exhaustive andmust gradually besupplemented byharmonized methods of
analysis forother textile products consisting ofbinary mixtures that are
onthe market .
This Directive istherefore afirst addition toDirective 72/276/EEC .
ItsAnnex contains methods ofanalysis fortwoimportant products that
have recently appeared onthemarket .-sproducts composed ofbinary mixtures
containing polypropylene fibrs andcontaining chlorof ibres .
./..

-2-
Thesemethods,numbered14and15,havebeenpreparedbytheCommission's
TechnicalWorkingPartyontextilenamesandlabelling (analysis)onthe
basisofISOmethodsNos15and16(International StandardISO1833/1977,
SecondEdition)afternumerousinterlaboratory tests.
Anearlydateisenvisagedfortheentryintoforceoftheprovisions of
nationallawnecessaryfortheimplementation ofthisDirective:indeed,
thesemeasuresconcernonlyalimitednunberofnationallaboratories .

-3-
THECOUNCILOFTHEEUROPEANCOMMUNITIES,
HavingregardtotheTreatyestablishing theEuropeanEconomicCommunity,
andinparticularArticle100thereof,
HavingregardtotheproposalfromtheCommission,
HavingregardtotheopinionoftheEuropeanParliament,
HavingregardtotheopinionoftheEconomicandSocialCommittee,
Whereas CouncilDirective 71/307/EECof26July1971ontheapproxi­
mationofthelawsoftheMemberStatesrelatingtotextilenames(1)
laysdownprovisions onthemandatorylabellingofthefibrecompo­
sitionoftextileproducts;
Whereas,pursuanttoArticle13oftheabovementionedDirective 71/307/EEC,Counc:
Directive72/276/EECof17July1972ontheapproximation ofthelawsof i
theMemberStatesrelatingtocertainmethodsforthequantitative analysis '
ofbinarytextilefibremixtures(2)laysdownthirteenuniform.methodsofana-!
lysisformostofthetextileproductscomposedofbinarymixturesthat i
areonthemarket;
\
Whereastextileproductsconsisting ofpolypropylene fibresandcertain
otherfibresandproductsconsistingofchlorofibres basedonhomopolymers
ofvinylchlorideandcertainotherfibreswhicharealsosubjecttothe
labellingobligationprovidedforirrDirective 71/307/EEC,arenot -I
t
coveredbytheabovementionedDirective 72/276/EEC,andconsequently
uniformmethodsofanalysisapplicabletotheseproductsshouldbe
iestablished; ' i
(1)0JNoL185,16.8.1971,p.16 j
(2)0JNoL173,31.7.1972,P.1-'
t
, ■ r
.)./.

HASADOPTEDTHISDIRECTIVE :
\
Article 1 .
SpecialmethodsNos14and15setoutintheAnnextothisDirectiveare
herebyaddedtoAnnex11(2)ofCouncilDirective 72/276/EEC.
Article 2
1.MemberStatesshallbringintoforcetheprovisions necessarytocomply
withthisDirectivewithinoneyearofitsnotification .Theyshallfor
withinformtheCommission thereof.
2.AssoonasthisDirective hasbeennotified,MemberStatesshallalso
ensurethattheCommissionisinformed,insufficient timeforitto
submititscomments,ofanydraftlaws,-regulations oradministrative
provisions whichtheyintendtoadoptinthefieldcoveredbythis
Directive.
Article3
ThisDirectiveisaddressedtotheMemberStates.

ANNEX
METHODS FOR QUANTITATIVE ANALYSIS OF
CERTAIN BINARY FIBRE MIXTURES
s
'METHOD NO.14
POLYPROPYLENE FIBRES AND CERTAIN OTHER FIBRES
(Xylene method )
1.FIELD OFAPPLICATION
This method isapplicable ,after removal ofnon-fibrous matter ,to
. "binary mixtures of -
1.polypropylene fibres (3l)
with • ' ' i
2.wool'(l )animai hair (2and3)siile (4),cotton (5),acetate (17),
cupro (19)»modal (20),triaoetate (22),viscose (23),
acrylic '(24),nylon (28),polyester (29),andglass fibres (38).
2.PRINCIPLE ; • ' -
The polypropylene fibre isdissolved from aknown drymass ofthe
mixture with boiling ,xylene .Theresidue iscollected ,washed ,dried
andweighed ;itsmass ,corrected ifnecessary ,isexpressed asaper­
centage ofthe drymass ofthemixture .The percentage ofpolypropyle­
neisfound bydifference .
3.APPARATUS ANDREAGENTS (other than those specified inthe "general
instructions )
3.1 »Apparatus
i)Conical flasks ,ofminimum capacity 200ml,glass stoppered .
ii)Reflux condenser (suitable forliquids ofhigh boiling point )
fitting theconical flasks i).
3.2 .Reagent
Xylene distilling between 137 a-nd 141°C.
Note .This reagent ishighly flammable andhasatoxic vapour ,
-suitable precautions must betaken initsuse .
4.TEST PROCEDURE
Apply themethod described inthegeneral instructions ,then proceed
asfollows : -
Tothespecimen contained intheconical flask (3»l.i ),add100ml
ofxylene (3.2)pergram ofspecimen .Attach thecondenser
(3.1.ii )andbring thecontents totheboil andmaintain atboiling
point forthree minutes .Immediately decant the liquid through
theweighed filter crucible (seenote l)•Repeat this treatment
twice more ,each time using afresh 50 portion ofsolvent .

-2-
"uash theresidue remaining intheflask successively "with 30mlof
"boiling xylene (twice ),then with 75mloflight petroleum (1.3.2.1 )ofthe
general part )(twice ).Af.ter thesecond wash with Light petroleum ,filter
the contents ofthe flask through the crucible ,transfer ,any residual
fibres tothecrucible with theaid ofasmall quantity oflight petroleum
and allow the solvent toevaporate .Drythe crucible and residue ,cool
and weigh them .
NOTES
1.The filter crucible through iirhich the xylene istobedeoanted
must bepreheated .
2.After thetreatment with boiling xylene ,ensure that the flask
containing theresidue iscooled sufficiently before the light
petroleum isintroduced .
3.Inorder toreduce the fire andtoxic hazards totheoperator
ahotextraction apparatus using theappropriate procedures ,
giving identical results ,may beused ;see ,for example ,the
apparatus described inMelliand Textilberichte 56(l975 )»
pp643-645 .
5.CALCULATION AND jCXPRESSION OFRESULTS
Calculate theresults asdescribed inthegeneral instructions .
The value ofdis1.00 .
6.PRECISION
For homogeneous mixtures oftextile materials ,the confidence limits
-■ofresults obtained bythis method arenotgreater than +1for ;
theconfidence level of95^«

ÎIETHOD N°15
CHLOROPIBRES (HOKOPOLYMERS OPVINYL CHLORIDE )
AND CERTAIN OTHER FIBRES "
(Concentrated sulphuric acid method ) - '
1.FIELD OFAPPLICATION
This method isapplicable ,after removal ofnon-fibrous matter ,to
"binary mixtures of
1.chlorofibres (25)based onhomopolymers ofvinyl chloride
(after-chlorinated ornot) .
with
2.cotton(5)»acetate(17),oupro(19)»modal(20),
triacetate(22),viscose(23),certain acrylic(24),certain
-modacrylic fibres(27),nylon (28)andpolyester(29).-The
modacrylics concerned arethose which give alimpid solution when
,immersed inconcentrated sulphuric acid (relative density I.84
at20°C ). .
This method canbeused inplace ofMethods 8or9.
2.PRINCIPLE
The constituent other than .the chlorofibre (i.e. the fibres mentioned
under point 2of§1)isdissolved from aknown drymass ofthemixture
with concentrated sulphuric acid (p20=1.84 g/ml).The residue ,consist­
ing ofthe chlorofibre ,iscollected ,washed ,dried andweighed ;its
mass ,corrected ifnecessary ,isexpressed asapercentage ofthe-dry
mass ofthemixture .Thepercentage ofthe second constituent isob­
tained bydifference .
3.APPARATUS ANDREAGENTS (other than those specified inthegeneral
instructions )
3.1 .Apparat us -
i)Conical flask ,ofminimum capacity 200ml,glass stoppered .
ii)Glass rodwith flattened end .
3.2 .Reagents . '
i)Sulpl-mric acid ,concentrated (p20=I.84g/ml)
ii)Sulphuric acid ,50%(m/m)approximately .
Prepare byadding carefully ,while cooling ,400mlof
sulphuric acid (g20=1.34 g/ml)to500mlofdistilled or
deionised water .After cooling toroom temperature ,dilute
the solution to1litre with water .
iii)Ammonia ,dilute solution .
Dilute 60mlofoonoentrated ammonia solution (020=0 -880g/nl)
to1litre with distilled water .
/

-2-
4.TEST PROCEDURE
Follow "theprocedure specified inthegeneral instructions ,then
proceed asfollows :
Tothespecimen contained intheflask (3.1.i )add100mlof
sulphuric acid (3.2.i)pergram ofspecimen .
Allow .thecontents oftheflask toremain atroom temperature
for 10min ,andduring that time stir the test specimen occa­
sionally bymeans oftheglass rod .Ifawoven orknitted fabric
isbeing treated ,wedge itbetween thewall ofthe flask and the
glass rodand exert alight pressure inorder toseparate the
material dissolved bythe sulphuric acid . _
Decant the liquid through theweighed filter crucible .Add
tothe .flask afresh portion of100mlofsulphuric acid
.(3.2 .i)andrepeat thesame operation .Transfer thecontents
of .the flask tothe filter crucible and transfer the fibrous
residue there with theaidoftheglass rod .Ifnecessary ,
addalittle concentrated sulphuric acid (3.2.i)totheflask
inorder toremove any fibres adhering tothe wall .Drain the s
-filter crucible with suction ;remove thefiltrate byemptying
orehanging the filter-flaslc ,wash the residue inthe
crucible successively with 50fosulphuric acid solution (3.2.ii ),_
distilled ordeionized water (1-3-2-3ofthegeneral part ),ammonia
solutiorv (3.2.iii )andfinally wash thoroughly with distilled or
deionized water ,draining thecrucible with suction after each
addition .(Donotapply suction during thewashing operation ,but
only after the liquid hasdrained offbygravity .)
■Drythe crucible andresidue ,cool andweigh them .
5.CALCULATION ANDEXPRESSION OPRESULTS .
Calculate theresults asdescribed inthe general instructions .-
The value ofdis1.00 . ^
6.PRECISION
Forhomogeneous mixtures oftextile materials ,the confidence -
limits ofresults obtained bythis method arenot greater than >
+1fortheconfidence level of95$*