DIN EN ISO 1833-6-2011 Textiles - Quantitative chemical analysis - Part 6 Mixtures of viscose or certain types of cupro or modal or lyocell and cotton fibres (method using formic a.pdf

1、January 2011 Translation by DIN-Sprachendienst.English price group 7No 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!$l“1739893www.din.deDDIN EN ISO 1833-6Textiles Quantitative chemical analysis Part 6: Mixtures of viscose or certain types of cupro or modal or lyocelland cotton fibres (method using formic acid and zinc chloride)(ISO 1833-6:2007)English translation of DIN EN ISO 1833-6:2011-01Textilien Q

3、uantitative chemische Analysen Teil 6: Mischungen aus Viskose oder bestimmten Cupro-, Modal- oder Lyocellfasern undBaumwollfasern (Ameisensure-/Zinkchlorid-Verfahren) (ISO 1833-6:2007)Englische bersetzung von DIN EN ISO 1833-6:2011-01Textiles Analyse chimique quantitative Partie 6: Mlanges de viscos

4、e ou de certains types de cupro, modal ou lyocell et de fibresde coton (mthode lacide formique et au chlorure de zinc) (ISO 1833-6:2007)Traduction anglaise de DIN EN ISO 1833-6:2011-01www.beuth.deDocument comprises pagesIn case of doubt, the German-language original shall be considered authoritative

5、.1002.11 DIN EN ISO 1833-6:2011-01 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 and textile products” (Secretariat: BSI, United Kingdom). The responsi

6、ble 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 1833-1 is summarized below as a help to users of this standard: In ge

7、neral, 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 of the soluble component(s) is calculated from loss in mass. ISO 1833-

8、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 these parts contains a more detailed description of a method that is ap

9、plicable 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 used during processing and, to a lesser extent, in finished textiles m

10、ay 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 analysis and be erroneously calculated as soluble fibre components. To avo

11、id 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 or other matter added to bind the fibres or to confer special properti

12、es, 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 reagents. This type of added matter can thus also cause errors and sho

13、uld 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 textile fibres contain water, the amount of which depends on the type of f

14、ibre 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 obtained on the basis of the dry mass of the dry fibres only. Provision

15、s have been made for recalculating results on the basis of a) permissible deviations agreed upon for moisture content1)1)Commonly used conditioning values shall be used for each fibre, where these are available. 2 DIN EN ISO 1833-6:2011-01 b) permissible deviations agreed upon for humidity, as well

16、as for 1) the fibrous matter 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 p

17、artially dissolved in the 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 t

18、his purpose. These factors 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, dif

19、ferent correction factors 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

20、 identified. For the purposes 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 mix

21、ture are to be manually 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:

22、ISO 1833-1 DIN EN ISO 1833-1 3 DIN EN ISO 1833-6:2011-01 National Annex NA (informative) Bibliography DIN EN ISO 1833-1, Textiles Quantitative chemical analysis Part 1: General principles of testing 4 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 1833-6 October 2010 ICS 59.060.01 English

23、Version Textiles - Quantitative chemical analysis - Part 6: Mixtures of viscose or certain types of cupro or modal or lyocell and cotton fibres (method using formic acid and zinc chloride)(ISO 1833-6:2007) Textiles - Analyse chimique quantitative - Partie 6: Mlanges de viscose ou de certains types d

24、e cupro, modal ou lyocell et de fibres de coton (mthode lacide formique et au chlorure de zinc) (ISO 1833-6:2007) Textilien - Quantitative chemische Analysen - Teil 6: Mischungen aus Viskose oder bestimmten Cupro-, Modal- oder Lyocellfasern und Baumwollfasern (Ameisensure-/Zinkchlorid-Verfahren) (IS

25、O 1833-6:2007) This European Standard 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 bi

26、bliographical references concerning such national standards may be obtained on application to the CEN 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 responsibili

27、ty of a CEN member into its own language and notified to the CEN 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,

28、Iceland, Ireland, 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: Av

29、enue Marnix 17, 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 1833-6:2010: EContents Page 2DIN EN ISO 1833-6:2011-01 EN ISO 1833-6:2010 (E) Foreword .3 1 Scope.5 2 Normative references.5 3 Principle 5 4 R

30、eagents .5 5 Apparatus6 6 Test Procedure .6 7 Calculation and expression of results .6 8 Precision .6 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

31、 acetate and certain 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 6: Mixtures of viscose or certain types of cupro or modal

32、 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) Part 8: Mixtures of acetate and triacetate fibres (method using acetone) Part 9: Mixtures of acetate and triacetate fibres (method using benzyl

33、 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 modacrylics, certain chlorofibres, certain elastanes and certain oth

34、er 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) 3Foreword The text of ISO 1833-6:2007 has been prepared by Technical

35、Committee ISO/TC 38 “Textiles” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 1833-6:2010 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 na

36、tional 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 may be the subject of patent

37、 rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. 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: Mixt

38、ures 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) DIN EN ISO 1833-6:2011-01 EN ISO 1833-6:2010 (E) Part 19: Mixtures of cellulose fibres and asbestos (method by heating)

39、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 22: Mixtures of viscose or certain types of cupro or modal or lyocell and flax fibres (method using f

40、ormic acid and zinc chloride) Part 23: Mixtures of polyethylene and polypropylene (method using cyclohexanone) Part 24: Mixtures of polyester and some other fibres (method using phenol and tetrachloroethane) 4 Part 20: Mixtures of elastane and some other fibres (method using dimethylacetamide) Accor

41、ding 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, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Ita

42、ly, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 1833-5:2006 has been approved by CEN as a EN ISO 1833-5:2010 without any modification. DIN EN ISO 1833-6

43、:2011-01 EN ISO 1833-6:2010 (E) 1 Scope This part of ISO 1833 specifies a method, using a mixture of formic acid and zinc chloride, to determine the percentage of cotton, after removal of non-fibrous matter, in textiles made of binary mixtures of viscose or some cupro, modal and lyocell fibres, with

44、 cotton. If a cupro or modal or lyocell fibre is found to be present, a preliminary test is carried out to see whether it is soluble in the reagent. The method is not applicable to mixtures in which the cotton has suffered extensive chemical degradation, nor when the viscose, cupro, modal or lyocell

45、 fibre is rendered incompletely soluble by the presence of certain permanent finishes or reactive dyes that cannot be removed completely. WARNING This part of ISO 1833 calls for the use of substances/procedures that may be injurious to the health/environment if appropriate conditions are not observe

46、d. It refers only to technical suitability and does not absolve the user from legal obligations relating to health and safety/environment at any stage. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edi

47、tion 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 testing 3 Principle The viscose, cupro, modal or lyocell fibre is dissolved out from a known

48、 dry mass of the mixture, with a reagent composed of formic acid and zinc chloride. The residue is collected, washed, dried and weighed; its corrected mass is expressed as a percentage of the dry mass of the mixture. The percentage of viscose, cupro, modal or lyocell fibre is found by difference. 4 Reagents Use the reagents described in ISO 1833-1, together with those specified in 4.1 and 4.2. 4.1 Formic acid/zinc chloride reagent. Prepare a solution containing 20 g of anhydr