1、BSI Standards PublicationBS EN ISO 1833-25:2013Textiles Quantitativechemical analysisPart 25: Mixtures of polyester and certainother fibres (method using trichloroaceticacid and chloroform)BS EN ISO 1833-25:2013 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN IS
2、O1833-25:2013.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 beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of
3、a contract. Users are responsible for its correctapplication. The British Standards Institution 2013. Published by BSI StandardsLimited 2013ISBN 978 0 580 69160 7ICS 59.060.01Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the
4、 authority of theStandards Policy and Strategy Committee on 31 August 2013.Amendments issued since publicationDate Text affectedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 1833-25 August 2013 ICS 59.060.01 English Version Textiles - Quantitative chemical analysis - Part 25: Mixtures of
5、polyester and certain other fibres (method using trichloroacetic acid and chloroform) (ISO 1833-25:2013) Textiles - Analyse chimique quantitative - Partie 25: Mlanges de polyester et de certaines autres fibres (mthode lacide trichloractique et au chloroforme) (ISO 1833-25:2013) Textilien - Quantitat
6、ive chemische Analysen - Teil 25: Mischungen aus Polyester und einigen anderen Fasern (Trichloressigsure-/Chloroform-Verfahren) (ISO 1833-25:2013) This European Standard was approved by CEN on 26 July 2013. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the
7、 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 European Standard
8、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 are the national
9、 standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovaki
10、a, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2013 CEN All rights of exploitation in any form and by any means r
11、eserved worldwide for CEN national Members. Ref. No. EN ISO 1833-25:2013: EBS EN ISO 1833-25:2013EN ISO 1833-25:2013 (E) 3 Foreword This document (EN ISO 1833-25:2013) has been prepared by Technical Committee ISO/TC 38 “Textiles“ in collaboration with Technical Committee CEN/TC 248 “Textiles and tex
12、tile 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 identical text or by endorsement, at the latest by February 2014, and conflicting national standards shall be withdrawn at the latest by Februa
13、ry 2014. 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 responsible for identifying any or all such patent rights. According to the CEN-CENELEC Internal Regulations, the national standards org
14、anizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg
15、, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 1833-25:2013 has been approved by CEN as EN ISO 1833-25:2013 without any modification. BS EN ISO 1833-25:2013ISO 1833-25:2013(E)
16、ISO 2013 All rights reserved iiiContents PageForeword ivIntroduction vi1 Scope . 12 Normative references 13 Principle 14 Reagents 15 Apparatus . 16 Test procedure 27 Calculation and expression of results . 2Bibliography 3BS EN ISO 1833-25:2013ISO 1833-25:2013(E)ForewordISO (the International Organiz
17、ation for Standardization) is a worldwide federation 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
18、 has the right to be represented on that committee. 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.Th
19、e procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the e
20、ditorial rules of the ISO/IEC Directives, Part 2. www.iso.org/directivesAttention 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. Details of any patent rights
21、identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received. www.iso.org/patentsAny trade name used in this document is information given for the convenience of users and does not constitute an endorsement.The committee respons
22、ible for this document is 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) Pa
23、rt 4: Mixtures 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 6: Mixtures of viscose or certain types of cupro or modal or lyocell and cotton fibres (method using formic acid and
24、 zinc chloride) Part 7: Mixtures of polyamide and certain other fibres (method using formic acid) Part 8: Mixtures of acetate and triacetate fibres (method using acetone) Part 9: Mixtures of acetate and triacetate fibres (method using benzyl alcohol) Part 10: Mixtures of triacetate or polylactide an
25、d certain other fibres (method using dichloromethane) Part 11: Mixtures of cellulose and polyester fibres (method using sulfuric acid) Part 12: Mixtures of acrylic, certain modacrylics, certain chlorofibres, certain elastanes and certain other fibres (method using dimethylformamide) Part 13: Mixture
26、s of certain chlorofibres and certain other fibres (method using carbon disulfide/acetone) Part 14: Mixtures of acetate and certain chlorofibres (method using acetic acid) Part 15: Mixtures of jute and certain animal fibres (method by determining nitrogen content) Part 16: Mixtures of polypropylene
27、fibres and certain other fibres (method using xylene) Part 17: Mixtures of chlorofibres (homopolymers of vinyl chloride) and certain other fibres (method using sulfuric acid)iv ISO 2013 All rights reservedBS EN ISO 1833-25:2013ISO 1833-25:2013(E) Part 18: Mixtures of silk and wool or hair (method us
28、ing sulfuric acid) Part 19: Mixtures of cellulose fibres and asbestos (method by heating) Part 20: Mixtures of elastane and certain other fibres (method using dimethylacetamide) Part 21: Mixtures of chlorofibres, certain modacrylics, certain elastanes, acetates, triacetates and certain other fibres
29、(method using cyclohexanone) Part 22: Mixtures of viscose or certain types of cupro or modal or lyocell and flax fibres (method using formic acid and zinc chloride) Part 24: Mixtures of polyester and certain other fibres (method using phenol and tetrachloroethane) Part 25: Mixtures of polyester and
30、certain other fibres (method using trichloroacetic acid and chloroform) Part 26: Mixtures of melamine and cotton or aramid fibres (method using hot formic acid)The following part is cancelled: Part 23: Mixtures of polyethylene and polypropylene (method using cyclohexanone) ISO 2013 All rights reserv
31、ed vBS EN ISO 1833-25:2013ISO 1833-25:2013(E)IntroductionChloroform is said to be harmful for operators. Safety shall be secured by strict operation according to safety regulations or precautions. However, alternative methods intended for the dissolution of polyester are included in the Bibliography
32、.vi ISO 2013 All rights reservedBS EN ISO 1833-25:2013INTERNATIONAL STANDARD ISO 1833-25:2013(E)Textiles Quantitative chemical analysis Part 25: Mixtures of polyester and certain other fibres (method using trichloroacetic acid and chloroform)WARNING This part of ISO 1833 calls for the use of substan
33、ces/procedures that may be injurious to the health/environment if appropriate conditions are not observed. It refers only to technical suitability and does not absolve the user from legal obligations relating to health and safety/environment at any stage.1 ScopeThis part of ISO 1833 specifies a meth
34、od using trichloroacetic acid and chloroform to determine the percentage of polyester fibres after removal of non-fibrous matter, in textiles made of binary mixtures of polyester fibres with other fibres, except one type of aramid (polyamide imide), polyamide, chlorofibre and modacrylic.2 Normative
35、referencesThe 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 any amendments) applies.ISO 1833-1, Textiles Quantitative chemic
36、al analysis Part 1: General principles of testing3 PrincipleThe polyester fibre is dissolved out from a known dry mass of the mixture, with a reagent composed of trichloroacetic acid and chloroform. The residue is collected, washed, dried and weighed; its mass, corrected if necessary, is expressed a
37、s a percentage of the dry mass of the mixture. The percentage of polyester is found by difference.4 ReagentsUse the reagents described in ISO 1833-1, together with those specified in 4.1, 4.2 and 4.3.4.1 Solution of crystallized trichloroacetic acid/chloroform reagent, prepared at a mass ratio 1:1.S
38、AFETY PRECAUTIONS The harmful effects of this reagent shall be borne in mind, and full precautions shall be taken during use.4.2 Solution of 15 g of trichloroacetic acid filled up to 100 g with chloroform.4.3 Chloroform.5 ApparatusUse the apparatus described in ISO 1833-1, together with that describ
39、ed in 5.1.5.1 Conical flask, of minimum capacity of 200 ml, glass stoppered. ISO 2013 All rights reserved 1BS EN ISO 1833-25:2013ISO 1833-25:2013(E)6 Test procedureFollow the general procedure described in ISO 1833-1, and then proceed as follows.6.1 Place the specimen in the conical flask.6.2 Add 50
40、 ml of trichloroacetic acid/chloroform reagent (4.1) per gram of specimen.6.3 Stopper the conical flask and shake it vigorously.6.4 Allow the flask and contents to remain for 15 min, shaking it during this time at intervals.6.5 Decant the liquid through the weighed filter crucible with suction.6.6 P
41、our 100 ml of trichloroacetic acid/chloroform reagent (4.1) into the conical flask, decant the liquid through the filter crucible, and then transfer any residual fibres to the crucible by washing out the conical flask with the trichloroacetic acid/chloroform solution (4.2) followed by chloroform (4.
42、3).6.7 Drain the crucible with suction. Do not apply suction until the washing liquor has drained under gravity.6.8 Finally, drain the crucible with suction, dry the crucible and residue, cool and weigh them.6.9 Check the residue under a microscope to see if the treatment completely eliminated the s
43、oluble fibre.7 Calculation and expression of resultsCalculate the results as described in the general instructions of ISO 1833-1.The value of the correction factor of variation in mass of insoluble component in the reagent (d) is 1,02 and 1,00 for cotton and aramid, respectively.2 ISO 2013 All right
44、s reservedBS EN ISO 1833-25:2013ISO 1833-25:2013(E)Bibliography1 ISO 1833-24, Textiles Quantitative chemical analysis Part 24: Mixtures of polyester and certain other fibres (method using phenol and tetrachloroethane)2 AATCC Fiber Analysis: Quantitative ISO 2013 All rights reserved 3This page delibe
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