DIN EN ISO 1833-18-2011 Textiles - Quantitative chemical analysis - Part 18 Mixtures of silk and wool or hair (method using sulfuric acid) (ISO 1833-18 2006) German version EN ISO .pdf

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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、 59.060.10!$ls“1739880www.din.deDDIN EN ISO 1833-18Textiles Quantitative chemical analysis Part 18: Mixtures of silk and wool or hair (method using sulfuric acid)(ISO 1833-18:2006)English translation of DIN EN ISO 1833-18:2011-01Textilien Quantitative chemische Analysen Teil 18: Mischungen aus Seide

3、 und Wolle oder Haaren (Schwefelsure-Verfahren)(ISO 1833-18:2006)Englische bersetzung von DIN EN ISO 1833-18:2011-01Textiles Analyse chimique quantitative Partie 18: Mlanges de soie et de laine ou poils (mthode lacide sulfurique)(ISO 1833-18:2006)Traduction anglaise de DIN EN ISO 1833-18:2011-01www.

4、beuth.deDocument comprises pagesIn case of doubt, the German-language original shall be considered authoritative.1002.11 DIN EN ISO 1833-18:2011-01 A comma is used as the decimal marker. National foreword This standard has been prepared by Technical Committee ISO/TC 38 “Textiles” in collaboration wi

5、th Technical Committee CEN/TC 248 “Textile and 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

6、 und Fasertrennung. The Introduction of ISO 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 insol

7、uble residue is weighed and the percentage of 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 ot

8、her parts of the ISO 1833 series; each of these 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 pa

9、rt of the standards series. Fibre mixtures used 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 o

10、f these substances can separate during analysis 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

11、. In addition, textiles may contain resins or 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

12、 be partially or completely removed by the reagents. 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

13、 of the fibre and is not removed. Most textile 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 i

14、s given in ISO 1833-1. The result is thus obtained on the basis of the dry mass of the dry fibres only. 2 DIN EN ISO 1833-18:2011-01 Provisions have been made for recalculating results on the basis of a) permissible deviations agreed upon for moisture content1)b) permissible deviations agreed upon f

15、or humidity, as well 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

16、of a mixture may be partially 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 fa

17、ctors are given for this 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 d

18、uring processing, different 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

19、the mixture should be 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, th

20、e components of a mixture 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 doc

21、ument is as follows: ISO 1833-1 DIN EN ISO 1833-1 1) Commonly used conditioning values shall be used for each fibre, where these are available. 3 DIN EN ISO 1833-18:2011-01 National Annex NA (informative) Bibliography DIN EN ISO 1833-1, Textiles Quantitative chemical analysis Part 1: General princip

22、les of testing 4 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 1833-18 October 2010 ICS 59.060.01 English Version Textiles - Quantitative chemical analysis - Part 18: Mixtures of silk and wool or hair (method using sulfuric acid) (ISO 1833-18:2006) Textiles - Analyse chimique quantitative

23、 - Partie 18: Mlanges de soie et de laine ou poils (mthode lacide sulfurique) (ISO 1833-18:2006) Textilien - Quantitative chemische Analysen - Teil 18: Mischungen aus Seide und Wolle oder Haaren (Schwefelsure-Verfahren) (ISO 1833-18:2006) This European Standard was approved by CEN on 12 September 20

24、10. 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 national standards may be obtained

25、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 responsibility of a CEN member into its own language and notified to the CEN Management

26、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, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands,

27、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, B-1000 Brussels 2010 CEN All rights of exploitation in any f

28、orm and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 1833-18:2010: EDIN EN ISO 1833-18:2011-01 EN ISO 1833-18:2010 (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

29、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 acetate and certain other fibres (method using acetone) Part 4: Mixtures

30、 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 acid) Part 8: Mixtures of acetate and triacetate fibres (me

31、thod 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 fibres (method using sulfuric acid) Part 12: Mixture

32、s 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) Foreword The text of ISO 1833-18:2006 has been prepared by T

33、echnical Committee ISO/TC 38 “Textiles” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 1833-18:2010 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 stat

34、us 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 may be the subject

35、 of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. 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 14: Mixtures of acetate and certain chlorof

36、ibres (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 (homopolymers of vinyl chloride) and certain other

37、fibres (method using sulfuric acid) Part 18: Mixtures of silk and wool or hair (method using sulfuric acid) DIN EN ISO 1833-18:2011-01 EN ISO 1833-18:2010 (E) 3 Part 19: Mixtures of cellulose fibres and asbestos (method by heating) Part 21: Mixtures of chlorofibres, certain modacrylics, certain elas

38、tanes, 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 formic acid and zinc chlorate) Part 23: Mixtures of polyethylene and

39、polypropylene (method using cyclohexanone) Part 24: Mixtures of polyester and some other fibres (method using phenol and tetrachloroethane) Part 20: Mixtures of elastane and certain other fibres (method using dimethylacetamide) According to the CEN/CENELEC Internal Regulations, the national standard

40、s 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, Lithuania, Luxembourg, Malta, Netherlands, Norway, Pola

41、nd, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 1833-18:2006 has been approved by CEN as a EN ISO 1833-18:2010 without any modification. DIN EN ISO 1833-18:2011-01 EN ISO 1833-18:2010 (E) 41 Scope This part of ISO 1833

42、specifies a method, using sulfuric acid, to determine the percentage of silk, after removal of non-fibrous matter, in textiles made of binary mixtures of silk and wool or animal hair. 2 Normative references The following referenced documents are indispensable for the application of this document. Fo

43、r 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 testing 3 Principle The silk fibre is dissolved from a known

44、 dry mass of the mixture with 75 % (mass fraction) sulfuric acid 1). 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. The percentage of silk is found by the difference. 4 Reagents Use the reagents desc

45、ribed in ISO 1833-1 together with those given in 4.1, 4.2 and 4.3. 4.1 Sulfuric acid. Prepare this reagent by adding carefully, while cooling, 700 ml of sulfuric acid ( = 1,84 g/ml) to 350 ml of distilled water. After cooling this solution to room temperature, dilute it to 1 I with water. The concen

46、tration is not critical within the range 73 % to 77 % (mass fraction) sulfuric acid. 4.2 Sulfuric acid, dilute solution. Slowly add 100 ml of sulfuric acid (4.1) ( = 1,84 g/ml) to 1 900 ml of distilled water. 1) Wild silk, such as tussah silk, are not completely soluble in 75 % (mass fraction) sulfu

47、ric acid. 4.3 Ammonia, dilute solution. Dilute 200 ml of concentrated ammonia solution ( = 0,880 g/ml) to 1 I with water. DIN EN ISO 1833-18:2011-01 EN ISO 1833-18:2010 (E) 55 Apparatus Use the apparatus described in ISO 1833-1 together with that given in 5.1. 5.1 Conical flasks, of minimum capacity

48、 200 ml, glass stoppered. 6 Test procedure Follow the general procedure described in ISO 1833-1, and then proceed as follows. To the specimen contained in a glass-stoppered conical flask, add 100 ml of the sulfuric acid (4.1) per gram of specimen, insert the stopper, shake vigorously (preferably in a mechanical shaker) and allow to stand for 30 min at room temperature. Shake again and allow to stand for 30 min. Shake a last time and filter the contents of the flask through the