1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 1833-21:2010Textiles Quantitativechemical analysisPart 21: Mixtures of chlorofibres, certainmodacrylics, certain elastanes, acetates,triacetates and certain other fibre
2、s (methodusing cyclohexanone) (ISO 1833-21:2006)Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 26/05/2011 08:33, Uncontrolled Copy, (c) BSIBS EN ISO 1833-21:2010 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO1833-21:2010. It is identical to ISO 1833
3、-21:2006. It supersedes BS4407:1988 which will be withdrawn on publication of the otherparts of the BS EN ISO 1833 series.The UK participation in its preparation was entrusted to TechnicalCommittee TCI/80, Chemical testing of textiles.A list of organizations represented on this committee can beobtai
4、ned on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2011ISBN 978 0 580 72142 7ICS 59.060.01; 59.060.20Compliance with a British Standard cannot confer immunity fromlegal obligati
5、ons.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 28 February 2011.Amendments issued since publicationDate Text affectedLicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 26/05/2011 08:33, Uncontrolled Copy, (c) BSIEUROPEAN STANDARD NORM
6、E EUROPENNE EUROPISCHE NORM EN ISO 1833-21 October 2010 ICS 59.060.01 English Version Textiles - Quantitative chemical analysis - Part 21: Mixtures of chlorofibres, certain modacrylics, certain elastanes, acetates, triacetates and certain other fibres (method using cyclohexanone) (ISO 1833-21:2006)
7、Textiles - Analyse chimique quantitative - Partie 21: Mlanges de chlorofibres, certains modacryliques, certains lasthannes, actates, triactates et de certaines autres fibres (mthode la cyclohexanone) (ISO 1833-21:2006) Textilien - Quantitative chemische Analysen - Teil 21: Mischungen aus Chlorfasern
8、, bestimmten Modacrylfasern, bestimmten Elastanfasern, Acetatfasern, Triacetatfasern und bestimmten anderen Fasern (Cyclohexanon-Verfahren) (ISO 1833-21:2006) This European Standard was approved by CEN on 12 September 2010. CEN members are bound to comply with the CEN/CENELEC Internal Regulations wh
9、ich stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This E
10、uropean Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members
11、 are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sw
12、eden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members
13、. Ref. No. EN ISO 1833-21:2010: ELicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 26/05/2011 08:33, Uncontrolled Copy, (c) BSIBS EN ISO 1833-21:2010EN ISO 1833-21:2010 (E) 3 Foreword The text of ISO 1833-21:2006 has been prepared by Technical Committee ISO/TC 38 “Textiles” of the International
14、 Organization for Standardization (ISO) and has been taken over as EN ISO 1833-21:2010 by Technical Committee CEN/TC 248 “Textiles and textile products” the secretariat of which is held by BSI. This European Standard shall be given the status of a national standard, either by publication of an ident
15、ical text or by endorsement, at the latest by April 2011, and conflicting national standards shall be withdrawn at the latest by April 2011. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held resp
16、onsible for identifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finl
17、and, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 1833-21:2006 has been approved by CEN as a E
18、N ISO 1833-21:2010 without any modification. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 26/05/2011 08:33, Uncontrolled Copy, (c) BSIBS EN ISO 1833-21:2010ISO 1833-21:2006(E) ISO 2006 All rights reserved iiiForeword ISO (the International Organization for Standardization) is a worldwide f
19、ederation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that co
20、mmittee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accor
21、dance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requir
22、es approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 1833-21 was prepared by Technic
23、al Committee ISO/TC 38, Textiles. ISO 1833 consists of the following parts, under the general title Textiles Quantitative chemical analysis: Part 1: General principles of testing Part 2: Ternary fibre mixtures Part 3: Mixtures of acetate and certain other fibres (method using acetone) Part 4: Mixtur
24、es of certain protein and certain other fibres (method using hypochlorite) Part 5: Mixtures of viscose, cupro or modal and cotton fibres (method using sodium zincate) Part 7: Mixtures of polyamide and certain other fibres (method using formic acid) Part 8: Mixtures of acetate and triacetate fibres (
25、method using acetone) Part 9: Mixtures of acetate and triacetate fibres (method using benzyl alcohol) Part 10: Mixtures of triacetate or polylactide and certain other fibres (method using dichloromethane) Part 11: Mixtures of cellulose and polyester fibres (method using sulfuric acid) Part 12: Mixtu
26、res of acrylic, certain modacrylics, certain chlorofibres, certain elastanes and certain other fibres (method using dimethylformamide) Part 13: Mixtures of certain chlorofibres and certain other fibres (method using carbon disulfide/acetone) Part 14: Mixtures of acetate and certain chlorofibres (met
27、hod using acetic acid) Part 15: Mixtures of jute and certain animal fibres (method by determining nitrogen content) Part 16: Mixtures of polypropylene fibres and certain other fibres (method using xylene) Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 26/05/2011 08:33, Uncontrolled Copy, (c)
28、 BSIBS EN ISO 1833-21:2010ISO 1833-21:2006(E) iv ISO 2006 All rights reserved Part 17: Mixtures of chlorofibres (homopolymers of vinyl chloride) and certain other fibres (method using sulfuric acid) Part 18: Mixtures of silk and wool or hair (method using sulfuric acid) Part 19: Mixtures of cellulos
29、e fibres and asbestos (method by heating) Part 21: Mixtures of chlorofibres, certain modacrylics, certain elastanes, acetates, triacetates and certain other fibres (method using cyclohexanone) The following parts are under preparation: Part 6: Mixtures of viscose or certain types of cupro or modal o
30、r lyocell and cotton fibres (method using formic acid and zinc chloride) Part 20: Mixtures of elastane and certain other fibres (method using dimethylacetamide) Part 22: Mixtures of viscose or certain types of cupro or modal or lyocell and flax fibres (method using formic acid and zinc chlorate) Par
31、t 23: Mixtures of polyethylene and polypropylene (method using cyclohexanone) Part 24: Mixtures of polyester and some other fibres (method using phenol and tetrachloroethane) Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 26/05/2011 08:33, Uncontrolled Copy, (c) BSIBS EN ISO 1833-21:2010INTE
32、RNATIONAL STANDARD ISO 1833-21:2006(E) ISO 2006 All rights reserved 1Textiles Quantitative chemical analysis Part 21: Mixtures of chlorofibres, certain modacrylics, certain elastanes, acetates, triacetates and certain other fibres (method using cyclohexanone) 1 Scope This part of ISO 1833 specifies
33、a method, using cyclohexanone, to determine the percentage of chlorofibre, modacrylic, elastane, acetate and triacetate, after removal of non-fibrous matter, in textiles made of binary mixtures of acetate, triacetate, chlorofibre, certain modacrylics, certain elastanes and wool, animal hair, silk, c
34、otton, cupro, modal, viscose, polyamide, acrylic and glass fibre. Where modacrylics or elastanes are present, a preliminary test should be carried out to determine whether the fibre is completely soluble in the reagent. It is also possible to analyse mixtures containing chlorofibres by using the tes
35、t methods described in ISO 1833-13 or ISO 1833-17. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including
36、any amendments) applies. ISO 1833-1, Textiles Quantitative chemical analysis Part 1: General principles of testing 3 Principle The acetate and triacetate fibres, chlorofibres, certain modacrylics, and certain elastanes are dissolved out from a known dry mass with cyclohexanone at a temperature close
37、 to boiling point. The residue 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 chlorofibre, modacrylic, elastane, acetate and triacetate is found by the difference. Licensed Copy: Wang Bin, ISO/
38、EXCHANGE CHINA STANDARDS, 26/05/2011 08:33, Uncontrolled Copy, (c) BSIBS EN ISO 1833-21:2010ISO 1833-21:2006(E) 2 ISO 2006 All rights reserved4 Reagents Use the reagents described in ISO 1833-1 together with those given in 4.1 and 4.2. 4.1 Cyclohexanone, boiling point 156 C. 4.2 Ethanol, 50 % by vol
39、ume. SAFETY PRECAUTIONS Cyclohexanone is flammable and toxic. Suitable precautions shall be taken in its use. 5 Apparatus Use the apparatus described in ISO 1833-1 together with those given in 5.1 to 5.5. 5.1 Hot extraction apparatus (see Annex A). NOTE This is a variant of the apparatus described i
40、n Reference 5. 5.2 Filter crucible, to contain the specimen. 5.3 Porous baffle (porosity grade 1), flat circular stopper of glass with a glass filter in the middle. The stopper is placed over the glass filter crucible. 5.4 Reflux condenser, that can be adapted to the distillation flask. 5.5 Heating
41、device. 6 Procedure Follow the general procedure given in ISO 1833-1, and then proceed as follows. Pour into the distillation flask 100 ml of cyclohexanone per gram of material. Insert the extraction container in which the filter crucible, containing the specimen and the porous baffle, slightly incl
42、ined, have previously been placed. Insert the reflux condenser. Bring to the boil and continue extraction for 60 min at a minimum rate of 12 cycles per hour. After extraction and cooling remove the extraction container, take out the filter crucible and remove the porous baffle. Wash the contents of
43、the filter crucible three or four times with 50 % ethanol heated to about 60 C and subsequently with 1 l of water at 60 C. Do not apply suction during or between the washing operations. Allow the liquid to drain under gravity and then apply suction. Finally, dry the crucible with the residue, then c
44、ool and weigh them. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 26/05/2011 08:33, Uncontrolled Copy, (c) BSIBS EN ISO 1833-21:2010ISO 1833-21:2006(E) ISO 2006 All rights reserved 37 Calculation and expression of results Calculate the results as described in the general instructions of ISO
45、 1833-1. The value of d is 1,00 with the following exceptions: silk 1,01; acrylic 0,98. 8 Precision On homogeneous mixtures of textile fibres, the confidence limits of results obtained by this method are not greater than 1 % for a confidence level of 95 %. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA
46、 STANDARDS, 26/05/2011 08:33, Uncontrolled Copy, (c) BSIBS EN ISO 1833-21:2010ISO 1833-21:2006(E) 4 ISO 2006 All rights reservedAnnex A (informative) Hot extraction apparatus Key 1 porous baffle 2 filter crucible Figure A.1 Hot extraction apparatus Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDAR
47、DS, 26/05/2011 08:33, Uncontrolled Copy, (c) BSIBS EN ISO 1833-21:2010ISO 1833-21:2006(E) ISO 2006 All rights reserved 5Bibliography 1 ISO 1833-13, Textiles Quantitative chemical analysis Part 13: Mixtures of certain chlorofibres and certain other fibres (method using carbon disulfide/acetone) 2 ISO
48、 1833-17, Textiles Quantitative chemical analysis Part 17: Mixtures of chlorofibres (homopolymers of vinyl chloride) and certain other fibres (method using sulfuric acid) 3 ISO 2076, Textiles Man-made fibres Generic names 4 ISO 6938, Textiles Natural fibres Generic names and definitions 5 Melliand T
49、extilberichte, 56, 1975, pp. 643-645 Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 26/05/2011 08:33, Uncontrolled Copy, (c) BSIThis page deliberately left blankLicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 26/05/2011 08:33, Uncontrolled Copy, (c) BSIThis page deliberately left blankLicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 26/05/2011 08:33, Uncontrolled Copy, (c) BSIBSI is the independent national body responsible f
