1、BRITISH STANDARD BS ISO 6741-3:1987 Textiles Fibres and yarns Determination of commercial mass of consignments Part 3: Specimen cleaning procedures ICS 59.060.01; 59.080.20 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBS ISO 6741-3:1987 This British Standard, having been pre
2、pared under the direction of the Materials and Chemicals Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 21 May 2002 BSI 21 May 2002 ISBN 0 580 39665 7 National foreword This British Standard reproduces verbatim ISO 6741-3:198
3、7 and implements it as the UK national standard. It supersedes BS 4784-3:1988 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee TCI/24, Physical testing of textiles, which has the responsibility to: A list of organizations represented on this committee
4、can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using t
5、he “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity fro
6、m legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the
7、UK. Summary of pages This document comprises a front cover, an inside front cover, the ISO title page, the ISO foreword page, pages 1 to 4, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since pu
8、blication Amd. No. Date CommentsINTERNATIONAL STANDARD INTERNATIONAL ORGANIZATION FOR STANDARDIZATION ORGANISATION INTERNATIONALE DE NORMALISATION ME)KAYHAPOJJHAFI OPI-AHM3AMFl IlO CTAHflAPTM3AMM Textiles - Fibres and yarns - Determination of commercial mass of consignments - Part 3 I Specimen clean
9、ing procedures Textiles - Fibres et fils - D always use tweezers. If the yarn has been given a special size which cannot be com- pletely removed by combustion, other desizing methods may be used by agreement between the interested parties. 5.8 Method 2: Other cleaning procedure A method agreed betwe
10、en the interested parties for when the above cleaning methods are not suitable. use only 3 IS0 6741-3 : 1987 E) Annex Detergent to be used in connection with method B (This annex forms an integral part of the Standard.) IEC test detergent with perborate, type 1, of the following formulation : Linear
11、 sodium alkyl benzene sulfonate (mean length of alkane chain : Ctt 5) I Ethoxylated tallow alcohol (14 moles ethylene oxide) Sodium soap (chain length Cl2 to Cz) Sodium tripolyphosphate Sodium silicate (Si02/NazO = 3,3/l) Magnesium silicate Sodium carboxymethylcellulose Ethylenediamine - tetra-acetic acid sodium salt Sodium sulfate (as accompanying substance or added) Sodium perborate (NaB02a3H20eH202) (freshly added to the above, immediately before use) Oh (m/m) 6,4 22 23 350 60 13 1,O 02 16,8 60 This page intentionally left blank
