1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 1833-18:2010Textiles Quantitativechemical analysisPart 18: Mixtures of silk and wool orhair (method using sulfuric acid) (ISO1833-18:2006)BS EN ISO 1833-18:2010 BRITISH
2、 STANDARDNational forewordThis British Standard is the UK implementation of EN ISO1833-18:2010. It is identical to ISO 1833-18:2006. It supersedes BS4407:1988 which will be withdrawn on publication of the otherparts of the BS EN ISO 1833 series.The UK participation in its preparation was entrusted t
3、o 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 correctapplication. BSI 201
4、1ISBN 978 0 580 72139 7ICS 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 affectedEUROPEAN
5、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 - Partie 18: Mlanges de s
6、oie 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 2010. CEN members are bound
7、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 CEN
8、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 Centre has the same status
9、 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, Poland, Portugal,
10、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 by any means reser
11、ved worldwide for CEN national Members. Ref. No. EN ISO 1833-18:2010: EBS EN ISO 1833-18:2010EN ISO 1833-18:2010 (E) 3 Foreword The text of ISO 1833-18:2006 has been prepared by Technical Committee ISO/TC 38 “Textiles” of the International Organization for Standardization (ISO) and has been taken ov
12、er 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 status of a national standard, either by publication of an identical text or by endorsement, at the latest by April 2011, and
13、 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 shall not be held responsible for identifying any or all such patent rights. Accord
14、ing 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, Ital
15、y, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 1833-18:2006 has been approved by CEN as a EN ISO 1833-18:2010 without any modification. BS EN ISO 1833-1
16、8:2010ISO 1833-18:2006(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 International Standards is normally carried out through ISO technical committe
17、es. 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 liaison with ISO, also take part in the work. ISO collaborates closely with the Inte
18、rnational 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 technical committees is to prepare International Standards. Draft International S
19、tandards 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 drawn to the possibility that some of the elements of this document may be the su
20、bject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 1833-18 was prepared by Technical Committee ISO/TC 38, Textiles. This first edition of ISO 1833-18 cancels and replaces Clause 17 of ISO 1833:1977. ISO 1833:1977 will be cancelled and replace
21、d 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 1833-19. ISO 1833 consists of the following parts, under the general title
22、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: Mixtures of visco
23、se, 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) Part 9: Mixtures of acetate and triacetate fibres (method using benzyl alcohol
24、) 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 other fibre
25、s (method using dimethylformamide) Part 13: Mixtures of certain chlorofibres and certain other fibres (method using carbon disulfide/acetone) BS EN ISO 1833-18:2010ISO 1833-18:2006(E) iv ISO 2006 All rights reserved Part 14: Mixtures of acetate and certain chlorofibres (method using acetic acid) Par
26、t 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 fibres (method using sulfuric acid)
27、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, triacetates and certain other fibres (method using cyclohexanone) The fo
28、llowing 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 fibres (method using dimethylacetamide) Part 22: Mixtures of viscose or certai
29、n 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) BS EN ISO 1833-18:2010IN
30、TERNATIONAL STANDARD ISO 1833-18:2006(E) ISO 2006 All rights reserved 1Textiles Quantitative chemical analysis Part 18: Mixtures of silk and wool or hair (method using sulfuric acid) 1 Scope This part of ISO 1833 specifies a method, using sulfuric acid, to determine the percentage of silk, after rem
31、oval 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. For dated references, only the edition cited applies. For undated references, the latest
32、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 dry mass of the mixture with 75 % (mass fraction) sulfuric acid 1). The residue is col
33、lected, 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 described in ISO 1833-1 together with those given in 4.1, 4.2 and 4.3. 4.1 Sulfuric acid. P
34、repare 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 concentration is not critical within the range 73 % to 77 % (mass fraction) sulfuric acid. 4.
35、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) sulfuric acid. BS EN ISO 1833-18:2010ISO 1833-18:2006(E) 2 ISO 2006 All rights reserved4.3 A
36、mmonia, dilute solution. Dilute 200 ml of concentrated ammonia solution ( = 0,880 g/ml) to 1 I with water. 5 Apparatus Use the apparatus described in ISO 1833-1 together with that given in 5.1. 5.1 Conical flasks, of minimum capacity 200 ml, glass stoppered. 6 Test procedure Follow the general proce
37、dure 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 temperat
38、ure. Shake again and allow to stand for 30 min. Shake a last time and filter the contents of the flask through the weighed filter crucible. Wash any remaining fibres from the flask with a little sulfuric acid (4.1). Drain the crucible using suction and wash the residue on the crucible successively w
39、ith 50 ml of the dilute sulfuric acid solution (4.2), 50 ml of water and 50 ml of the dilute ammonia solution (4.3). Each time, allow the fibres to remain in contact with the liquid for at least 10 min before applying suction. Rinse with water, leaving the fibres in contact with the water for about
40、30 min. 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. The value of d is 0,985. 8 Precision On a homogeneous mixture of textile ma
41、terials, the confidence limits of results obtained by this method are not greater than 1 for a confidence level of 95 %. BS EN ISO 1833-18:2010This page deliberately left blankThis page deliberately left blankBSI is the independent national body responsible for preparing British Standardsand other s
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