DIN EN ISO 1833-25-2013 Textiles - Quantitative chemical analysis - Part 25 Mixtures of polyester and certain other fibres (method using trichloracetic acid and chloroform) (ISO 18.pdf

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1、December 2013 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).IC

2、S 59.060.20!%*zG“2078736www.din.deDDIN EN ISO 1833-25Textiles Quantitative chemical analysis Part 25: Mixtures of polyester and certain other fibres (method usingtrichloracetic acid and chloroform) (ISO 1833-25:2013);English version EN ISO 1833-25:2013,English translation of DIN EN ISO 1833-25:2013-

3、12Textilien Quantitative chemische Analysen Teil 25: Mischungen aus Polyester und einigen anderen Fasern(Trichloressigsure-/Chloroform-Verfahren) (ISO 1833-25:2013);Englische Fassung EN ISO 1833-25:2013,Englische bersetzung von DIN EN ISO 1833-25:2013-12Textiles Analyse chimiques quantitative Partie

4、 25: Mlanges de polyester et de certaines autres fibres (mthode lacidetrichloractique et au chloroforme) (ISO 1833-25:2013);Version anglaise EN ISO 1833-25:2013,Traduction anglaise de DIN EN ISO 1833-25:2013-12www.beuth.deDocument comprises 12 pagesIn case of doubt, the German-language original shal

5、l be considered authoritative.12.13 DIN EN ISO 1833-25:2013-12 2 A comma is used as the decimal marker. National 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 textile produ

6、cts” (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 Prfverfahren und Fasertrennung. For the information of the user the intro

7、duction to EN ISO 1833-1:2010 is given below: In general, the methods described in the different parts of EN ISO 1833 are based on the selective solution of an individual component. After the removal of a component, the insoluble residue is weighed, and the proportion of soluble component is calcula

8、ted from the loss in mass. Part 1 of EN ISO 1833 gives the information which is common to the analyses, by this method, of all fibre mixtures, whatever their composition. This information should be used in conjunction with the other parts of EN ISO 1833; these parts contain the detailed procedures a

9、pplicable to particular fibre mixtures. Where, occasionally, an analysis is based on a principle other than selective solution, full details are given in the appropriate part. Mixtures of fibres during processing and, to a lesser extent, finished textiles may contain fats, waxes or dressings, either

10、 occurring naturally or added to facilitate processing. Salts and other water-soluble matter may also be present. Some or all of these substances would be removed during analysis, and calculated as the soluble-fibre component. To avoid this error, non-fibrous matter should be removed before analysis

11、. A method of pre-treatment for removing oils, fats, waxes and water-soluble matter is given in Annex A of Part 1 of EN ISO 1833. In addition, textiles may contain resins or other matter added to bond the fibres together or to confer special properties, such as water-repellence or crease-resistance.

12、 Such matter, including dyestuffs in exceptional cases, may interfere with the action of the reagent on the soluble component and/or it may be partially or completely removed by the reagent. This type of added matter may also cause errors and should be removed before the sample is analysed. If it is

13、 impossible to remove such added matter, the methods of analysis are no longer applicable. Dye in dyed fibres is considered to be an integral part of the fibre and is not removed. Most textile fibres contain water, the amount depending on the type of fibre and on the relative humidity of the surroun

14、ding air. Analyses are conducted on the basis of dry mass, and a procedure for determining the dry mass of test specimens and residues is given in Part 1 of EN ISO 1833. The result is therefore obtained on the basis of clean, dry fibres. DIN EN ISO 1833-25:2013-12 3 Provision is made for recalculati

15、ng the result on the basis of: a) agreed allowances for moisture content1), b) agreed allowances for moisture and also for 1) fibrous matter removed in the pre-treatment, and 2) non-fibrous matter (for example, fibre dressing, processing oil, or size) that can be properly regarded as part of the fib

16、re as an article of commerce. In some methods, the insoluble component of a mixture may be partially dissolved in the reagent used to dissolve the soluble component. Where possible, reagents have been chosen that have little or no effect on the insoluble fibres. If loss in mass is known to occur dur

17、ing the analysis, the result should be corrected; correction factors for this purpose are given. These correction factors have been determined in several laboratories by treating, in the appropriate reagent as specified in the method of analysis, fibres cleaned by the pre-treatment. These correction

18、 factors apply only to undegraded fibres, and different correction factors may be necessary if the fibres have been degraded during processing. The procedures given apply to single determinations; at least two determinations on separate test specimens should be made, but more may be carried out if d

19、esired. Before proceeding with any analysis, all the fibres present in the mixture should have been identified. For confirmation, unless it is technically impossible, it is recommended that use be made of alternative procedures whereby the constituent that would be the residue in the standard method

20、 is dissolved out first. If it is practicable to separate the components of a mixture manually, the method described in EN ISO 1833-1:2010 Annex B should be used in preference to the chemical methods of analysis given in the individual parts of EN ISO 1833. The DIN Standards corresponding to the Int

21、ernational Standards referred to in this document are as follows: ISO 1833-1 DIN EN ISO 1833-1 ISO 1833-24 DIN EN ISO 1833-24 1)The values to use are the conventional conditioning rates for the respective fibres, when rates exist.DIN EN ISO 1833-25:2013-12 4 National Annex NA (informative) Bibliogra

22、phy DIN EN ISO 1833-1, Textiles Quantitative chemical analysis Part 1: General principles of testing DIN EN ISO 1833-24, Textiles Quantitative chemical analysis Part 24: Mixtures of polyester and certain other fibres (method using phenol and tetrachloroethane) EUROPEAN STANDARD NORME EUROPENNE EUROP

23、ISCHE NORM EN ISO 1833-25 August 2013 ICS 59.060.01 English Version Textiles - Quantitative chemical analysis - Part 25: Mixtures of polyester and certain other fibres (method using trichloroacetic acid and chloroform) (ISO 1833-25:2013) Textiles - Analyse chimique quantitative - Partie 25: Mlanges

24、de polyester et de certaines autres fibres (mthode lacide trichloractique et au chloroforme)(ISO 1833-25:2013) Textilien - Quantitative chemische Analysen - Teil 25: Mischungen aus Polyester und einigen anderen Fasern (Trichloressigsure-/Chloroform-Verfahren)(ISO 1833-25:2013) This European Standard

25、 was approved by CEN on 26 July 2013. 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 concerning such n

26、ational 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 its own la

27、nguage 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, Former Yugoslav Republic of Macedonia, France, Germany, Gree

28、ce, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG

29、CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 1833-25:2013: EContents PageForeword .3Introduction .51 Scope . 62 Normative references 63 Principle 64 Reage

30、nts 65 Apparatus . 66 Test procedure 77 Calculation and expression of results . 7Bibliography 8DIN EN ISO 1833-25:2013-12 EN ISO 1833-25:2013 (E) 2 Foreword This document (EN ISO 1833-25:2013) has been prepared by Technical Committee ISO/TC 38 “Textiles“ in collaboration with Technical Committee CEN

31、/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 identical text or by endorsement, at the latest by February 2014, and conflicting national standards shall be withdraw

32、n at the latest by February 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. ISO 1833 consists of the following parts, under the

33、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 certain other fibres (method using hypochlorite) Part 5: Mix

34、tures 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 zinc chloride) Part 7: Mixtures of polyamide and certain other fibres (method using formic acid)

35、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 polyester

36、 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 14

37、: 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) Part 17: Mixtures of chlorofibres (homopolym

38、ers 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)DIN EN ISO 1833-25:2013-12 EN ISO 1833-25:2013 (E) 3 According to the CEN-CENELEC

39、 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Icela

40、nd, Ireland, Italy, Latvia, Lithuania, Luxembourg, 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 modific

41、ation. 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 (method using cyclohexanone) Part 22: Mixtures of viscose or certain types of cupro

42、 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 certain other fibres (method using trichloroacetic acid and chloroform) Part 26: Mi

43、xtures 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)DIN EN ISO 1833-25:2013-12 EN ISO 1833-25:2013 (E) 4 IntroductionChloroform is said to be harmful for operator

44、s. 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.DIN EN ISO 1833-25:2013-12 EN ISO 1833-25:2013 (E) 5 WARNING This part of ISO 1833 calls for the use

45、of substances/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 specif

46、ies a method 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

47、Normative 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 chemical 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 trichloroaceti