1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 1833-4:2010Textiles Quantitativechemical analysisPart 4: Mixtures of certain protein andcertain other fibres (method usinghypochlorite) (ISO 1833-4:2006)BS EN ISO 1833-
2、4:2010 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO1833-4:2010. It is identical to ISO 1833-4:2006. It supersedes BS4407:1988 which will be withdrawn on publication of the otherparts of the BS EN ISO 1833 series.The UK participation in its preparation was
3、 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 a contract. Users are responsible for its correctapplicat
4、ion. BSI 2011ISBN 978 0 580 72125 0ICS 59.060.01Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 28 February 2011.Amendments issued since publicationDate Text affec
5、tedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 1833-4 October 2010 ICS 59.060.01 English Version Textiles - Quantitative chemical analysis - Part 4: Mixtures of certain protein and certain other fibres (method using hypochlorite) (ISO 1833-4:2006) Textiles - Analyse chimique quantitativ
6、e - Partie 4: Mlanges de certaines fibres protiniques et de certaines autres fibres (mthode lhypochlorite) (ISO 1833-4:2006)Textilien - Quantitative chemische Analysen - Teil 4: Mischungen aus bestimmten Protein- und bestimmten anderen Fasern (Hypochlorit-Verfahren) (ISO 1833-4:2006)This European St
7、andard was approved by CEN on 12 September 2010. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concer
8、ning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European 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
9、 its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Irelan
10、d, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17,
11、 B-1000 Brussels 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 1833-4:2010: EBS EN ISO 1833-4:2010EN ISO 1833-4:2010 (E) 3 Foreword The text of ISO 1833-4:2006 has been prepared by Technical Committee ISO/TC 38 “Textiles
12、” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 1833-4:2010 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 pu
13、blication of an identical 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 s
14、hall not be held responsible 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, D
15、enmark, Estonia, Finland, 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 1833-4:2006 has been ap
16、proved by CEN as a EN ISO 1833-4:2010 without any modification. BS EN ISO 1833-4:2010ISO 1833-4:2006(E) ISO 2006 All rights reserved iiiForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing
17、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 committee. International organizations, governmental and non-governmental, in liaiso
18、n 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 accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of tec
19、hnical 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 requires approval by at least 75 % of the member bodies casting a vote. Attention is dra
20、wn 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 1833-4 was prepared by Technical Committee ISO/TC 38, Textiles. This first edition of ISO 1833-4 cancels and repl
21、aces Clause 3 of ISO 1833:1977. ISO 1833:1977 will be cancelled and replaced by ISO 1833-1, ISO 1833-3, ISO 1833-4, ISO 1833-5, ISO 1833-6, ISO 1833-7, ISO 1833-8, ISO 1833-9, ISO 1833-10, ISO 1833-11, ISO 1833-12, ISO 1833-13, ISO 1833-14, ISO 1833-15, ISO 1833-16, ISO 1833-17, ISO 1833-18 and ISO
22、1833-19. 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: Mixtures of certain protein and
23、 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 (method using acetone) Par
24、t 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: Mixtures of acrylic, certain m
25、odacrylics, 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 (method using acetic acid) BS
26、 EN ISO 1833-4:2010ISO 1833-4:2006(E) iv ISO 2006 All rights reserved 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) Part 17: Mixtures of chlorofibres (homopolymers
27、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 cellulose fibres and asbestos (method by heating) Part 21: Mixtures of chlorofibres, certain modacrylics, certain elastanes, acetates,
28、 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 or lyocell and cotton fibres (method using formic acid and zinc chloride) Part 20: Mixtures of elastane and certain other fibre
29、s (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) Part 23: Mixtures of polyethylene and polypropylene (method using cyclohexanone) Part 24: Mixtures of polyester and some other fi
30、bres (method using phenol and tetrachloroethane) BS EN ISO 1833-4:2010INTERNATIONAL STANDARD ISO 1833-4:2006(E) ISO 2006 All rights reserved 1Textiles Quantitative chemical analysis Part 4: Mixtures of certain protein and certain other fibres (method using hypochlorite) 1 Scope This part of ISO 1833
31、 specifies a method, using hypochlorite, to determine the percentage of protein fibre, after removal of non-fibrous matter, in textiles made of binary mixtures of certain non-protein fibres and one protein fibre, as follows: wool, chemically-treated wool, other animal-hair fibres, silk, regenerated
32、protein fibres based on casein, and cotton, cupro, viscose, modal, acrylic, chlorofibres, polyamide, polyester, polypropylene, glass and elastane. If several protein fibres are present, the method gives the total of their amounts but not their individual quantities. 2 Normative references The follow
33、ing 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 chemical analysis Part 1:
34、 General principles of testing 3 Principle The protein fibre is dissolved out from a known dry mass of the mixture with alkaline sodium hypochlorite. 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. Th
35、e percentage of protein fibre is found by the difference. 4 Reagents Use the reagents described in ISO 1833-1 together with those given in 4.1, 4.2 and 4.3. 4.1 Sodium hypochlorite, 1 mol/l sodium hypochlorite solution to which has been added a sufficient quantity of sodium hydroxide to bring the co
36、ncentration of sodium hydroxide to 5 g/l. The solution may be standardized iodometrically but its concentration is not critical within the range 0,9 mol/l to 1,1 mol/l. BS EN ISO 1833-4:2010ISO 1833-4:2006(E) 2 ISO 2006 All rights reserved4.2 Lithium hypochlorite. Lithium hypochlorite may be used as
37、 an alternative solvent to sodium hypochlorite solution containing (35 2) g/l of active chlorine (approximately 1 mol/l) to which (5 0,5) g/l of previously dissolved sodium hydroxide is added. To prepare, dissolve 100 g of lithium hypochlorite containing 35 % active chlorine (or 115 g containing 30
38、% active chlorine) in approximately 700 ml of distilled water, add 5 g of sodium hydroxide dissolved in approximately 200 ml of distilled water and make up to 1 l with distilled water. The solution which has been freshly prepared does not need to be checked iodometrically. 4.3 Acetic acid, dilute so
39、lution. Dilute 5 ml of glacial acetic acid to 1 I with water. 5 Apparatus Use the apparatus described in ISO 1833-1 together with those given in 5.1 and 5.2. 5.1 Conical flask, minimum capacity 250 ml. 5.2 Water-bath at temperature (20 2) C. 6 Test procedure Follow the general procedure described in
40、 ISO 1833-1, and then proceed as follows. To the specimen contained in the glass beaker, add 100 ml of hypochlorite reagent per gram of specimen, agitate vigorously to wet out the specimen and agitate continuously for 40 min in a water bath at (20 2) C. Filter the contents of the beaker through the
41、weighed filter crucible and transfer any residual fibres to the crucible by washing out the beaker with a little hypochlorite reagent. Drain the crucible using suction and wash the residue successively with water, dilute acetic acid, and finally water, draining the crucible using suction after each
42、addition. Do not apply suction until each washing liquor has drained under gravity. Finally, drain the crucible using suction, dry the crucible and residue, then cool and weigh them. 7 Calculation and expression of results Calculate the results as described in the general instructions of ISO 1833-1.
43、 The value of d is 1,00, except for raw cotton for which d = 1,03, and for cotton, viscose, modal for which d = 1,01. 8 Precision On a homogeneous mixture of textile materials, the confidence limits of the results obtained by this method are not greater than 1 for the confidence level of 95 %. BS EN
44、 ISO 1833-4:2010This page deliberately left blankThis page deliberately left blankBSI is the independent national body responsible for preparing British Standardsand other standards-related publications, information and services. It presents the UK view on standards in Europe and at the internationa
45、l level. It is incorporated by Royal Charter.British Standards Institution (BSI)raising standards worldwideBSI Group Headquarters389 Chiswick High Road London W4 4AL UKTel +44 (0)20 8996 9001Fax +44 (0)20 8996 Standards are updated by amendment or revision. Users of British Stan-dards should make s
46、ure that they possess the latest amendments or editions.It is the constant aim of BSI to improve the quality of our products and serv-ices. We would be grateful if anyone finding an inaccuracy or ambiguity whileusing this British Standard would inform the Secretary of the technical com-mittee respon
47、sible, the identity of which can be found on the inside frontcover.Tel: +44 (0)20 8996 9001 Fax: +44 (0)20 8996 7001BSI offers Members an individual updating service called PLUS which ensuresthat subscribers automatically receive the latest editions of standards.Tel: +44 (0)20 8996 7669 Fax: +44 (0)
48、20 8996 7001Email: Buying standardsYou may buy PDF and hard copy versions of standards directly using acredit card from the BSI Shop on the website addition all orders for BSI, international and foreign standards publicationscan be addressed to BSI Customer Services.Tel: +44 (0)20 8996 9001 Fax: +4
49、4 (0)20 8996 7001Email: In response to orders for international standards, it is BSI policy tosupply the BSI implementation of those that have been publishedas British Standards, unless otherwise requested.Information on standardsBSI provides a wide range of information on national, Europeanand international standards through its Knowledge Centre.Tel: +44 (0)20 8996 7004 Fax: +44 (0
