DIN EN ISO 1833-21-2011 Textiles - Quantitative chemical analysis - Part 21 Mixtures of chlorofibres certain modacrylics certain elastanes acetates triacetates and certain other fi.pdf

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1、January 2011 Translation by DIN-Sprachendienst.English price group 8No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS

2、 59.060.20!$lx“1739885www.din.deDDIN EN ISO 1833-21Textiles Quantitative chemical analysis Part 21: Mixtures of chlorofibres, certain modacrylics, certain elastanes,acetates, triacetates and certain other fibres (method usingcyclohexanone) (ISO 1833-21:2006)English translation of DIN EN ISO 1833-21:

3、2011-01Textilien Quantitative chemische Analysen Teil 21: Mischungen aus Chlorfasern, bestimmten Modacrylfasern, bestimmtenElastanfasern, Acetatfasern, Triacetatfasern und bestimmten anderen Fasern(Cyclohexanon-Verfahren) (ISO 1833-21:2006)Englische bersetzung von DIN EN ISO 1833-21:2011-01Textiles

4、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)Traduction anglaise de DIN EN ISO 1833-21:2011-01www.beuth.deDocument comprises pagesIn case of d

5、oubt, the German-language original shall be considered authoritative.1202.11 DIN EN ISO 1833-21:2011-01 A comma is used as the decimal marker. National foreword This standard has been prepared by Technical Committee ISO/TC 38 “Textiles” in collaboration with Technical Committee CEN/TC 248 “Textile a

6、nd textile products” (Secretariat: BSI, United Kingdom). The responsible German body involved in its preparation was the Normenausschuss Materialprfung (Materials Testing Standards Committee), Working Committee NA 062-05-12 AA Textilchemische Prfver-fahren und Fasertrennung. The Introduction of ISO

7、1833-1 is summarized below as a help to users of this standard: In general, the methods described in the various parts of ISO 1833 are based on the selective solution of an individual component. Once a component is dissolved from a test specimen, the insoluble residue is weighed and the percentage o

8、f the soluble component(s) is calculated from loss in mass. ISO 1833-1 gives information that is common to all of these analytical methods for all fibre mixtures, regardless of their composition. This general information should be used when applying the other parts of the ISO 1833 series; each of th

9、ese parts contains a more detailed description of a method that is applicable for a specific fibre mixture. If one of these methods is based on a principle other than selective solution, this is expressly stated and described in detail in the respective part of the standards series. Fibre mixtures u

10、sed during processing and, to a lesser extent, in finished textiles may contain fats, waxes or dressings which either occur naturally or are added to facilitate processing. Fibre mixtures may also contain salts and other water-soluble matter. Some or all of these substances can separate during analy

11、sis and be erroneously calculated as soluble fibre components. To avoid this error, non-fibrous matter should be removed before analysis. A method of pre-treatment for removing oils, fats, waxes and water-soluble matter is given in ISO 1833-1:2006, Annex A. In addition, textiles may contain resins o

12、r other matter added to bind the fibres or to confer special properties, such as water repellence or crease resistance. Such matter, including dyestuffs in exceptional cases, may interfere with the action of the reagent on the soluble components and/or may be partially or completely removed by the r

13、eagents. This type of added matter can thus also cause errors and should be removed before the sample is analysed. If it is impossible to remove such added matter, the methods are no longer applicable. Dye in dyed fibre is considered to be an integral part of the fibre and is not removed. Most texti

14、le fibres contain water, the amount of which depends on the type of fibre and the relative humidity of the ambient air. These analyses are conducted on the basis of dry mass, and a procedure for determining the dry mass of analytical samples and residues is given in ISO 1833-1. The result is thus ob

15、tained on the basis of the dry mass of the dry fibres only. 2 DIN EN ISO 1833-21:2011-01 Provisions have been made for recalculating results on the basis of a) permissible deviations agreed upon for moisture content1)b) permissible deviations agreed upon for humidity, as well as for 1) the fibrous m

16、atter separated during pre-treatment, and 2) non-fibrous matter (e.g. dressings, processing oils or sizing assistants) which can be considered as being a commonly used commercial article that is part of the fibre. In some methods, the insoluble components of a mixture may be partially dissolved in t

17、he reagent used to dissolve the soluble component(s). Whenever possible, reagents have been chosen that have little or no effect on the insoluble fibres. If a loss in mass is known to occur during the analysis, the result should be corrected; correction factors are given for this purpose. These fact

18、ors have been determined in several laboratories by treating, with the appropriate reagent as specified in the method of analysis, fibres cleaned by pre-treatment. These correction factors apply only to undegraded fibres. If the fibres have been degraded during processing, different correction facto

19、rs may be necessary. The methods described in this series apply for single determinations; at least two determinations should be made on separate samples, further determinations can be made where desired. Before the analyses are carried out, all fibres in the mixture should be identified. For the pu

20、rposes of confirmation, it is recommended that alternative methods be used in which the component that would have made up the residue when using the standard method is dissolved first, unless this is not technically possible. Where practically possible, the components of a mixture are to be manually

21、 separated if the method described in ISO 1833-1:2006, Annex B is to be primarily used instead of the chemical analytical methods described in the other parts of ISO 1833. The DIN Standard corresponding to the International Standard referred to in this document is as follows: ISO 1833-1 DIN EN ISO 1

22、833-1 1) Commonly used conditioning values shall be used for each fibre, where these are available. 3 DIN EN ISO 1833-21:2011-01 National Annex NA (informative) Bibliography DIN EN ISO 1833-1, Textiles Quantitative chemical analysis Part 1: General principles of testing DIN EN ISO 1833-11, Textiles

23、Quantitative chemical analysis Part 11: Mixtures of cellulose and polyester fibres (method using sulfuric acid) DIN EN ISO 1833-13, Textiles Quantitative chemical analysis Part 13: Mixtures of certain chlorofibres and certain other fibres (method using carbon disulfide/acetone) DIN ISO 2076, Textile

24、s Man-made fibres Generic names 4 EUROPEAN STANDARD NORME 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

25、 fibres (method using cyclohexanone) (ISO 1833-21:2006) 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

26、chemische Analysen - Teil 21: Mischungen aus Chlorfasern, 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 boun

27、d 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 concerning such national standards may be obtained on application to the CE

28、N-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 its own language and notified to the CEN-CENELEC Management Centre h

29、as 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, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,

30、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, B-1000 Brussels 2010 CEN All rights of exploitation in any form and

31、by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 1833-21:2010: EDIN EN ISO 1833-21:2011-01 EN ISO 1833-21:2010 (E) 2Contents Page Foreword .3 1 Scope.5 2 Normative references.5 3 Principle 5 4 Reagents .5 5 Apparatus6 6 Test Procedure .6 7 Calculation and expression of resul

32、ts .6 8 Precision .6 Annex A (informative) Hot extraction apparatus .7 Bibliography8 EN 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 cert

33、ain other fibres (method using acetone) Part 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 7: Mixtures of polyamide and certain other fibres (method using formic aci

34、d) 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 and certain other fibres (method using dichloromethane) Part 11: Mixtures of cellulose and polyes

35、ter 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: Mixtures of certain chlorofibres and certain other fibres (method using carbon disulfide/acetone) Part

36、 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 fibres and certain other fibres (method using xylene) Foreword The text of ISO 1833-21:2006 has

37、 been prepared by Technical Committee ISO/TC 38 “Textiles” of the International 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 shal

38、l be given the status of a national standard, either by publication 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

39、 may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. 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 (m

40、ethod using sulfuric acid) Part 6: Mixtures of viscose or certain types of cupro or modal or lyocell and cotton fibres (method using formic acid and zinc chloride) DIN EN ISO 1833-21:2011-01 EN ISO 1833-21:2010 (E) 3 Part 19: Mixtures of cellulose fibres and asbestos (method by heating) Part 21: Mix

41、tures of chlorofibres, certain modacrylics, certain elastanes, acetates, triacetates and certain other fibres (method using cyclohexanone) The following parts are under preparation: Part 20: Mixtures of elastane and certain other fibres (method using dimethylacetamide) Part 22: Mixtures of viscose o

42、r 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 fibres (method using phenol and tetrachloroethane) According to the

43、 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, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,

44、 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 EN ISO 1833-21:2010 without any modification. DIN EN ISO 1833-21:2011-01

45、 EN ISO 1833-21:2010 (E) 41 Scope This part of ISO 1833 specifies 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, cer

46、tain modacrylics, certain elastanes and wool, animal hair, silk, cotton, 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 pos

47、sible to analyse mixtures containing chlorofibres by using the test 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 ref

48、erences, the latest edition of the referenced document (including 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 to boiling point. The residue is collected, washed, dried and weighed. Its mass, corrected if necessary,