ISO INTERNATIONAL STANDARD 6741-2 First edition 1987-04-15 INTERNATIONALORGANIZATIONFORSTANDARDIZATION ORGANISATION INTERNATIONALE DENORMALISATION MEKAYHAPOAHAAOPTAHM3ALMANOCTAHAAPTM3ALWM Textiles - Fibres and yarns - Determination of commercialmassofconsignments Part 2 : Methodsforobtaininglaboratorysamples Textiles-Fibres et fils-Determinationde la masse commerciale d'unlot-- Partie2:Methodesd'obtentiondeséchantillonspourlaboratoire Reference number ISO 6741-2 : 1987 (E) Foreword 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 committees. Each member bodyinterested inasubjectforwhichatechnical committeehasbeenestablishedhas the right to be represented on that committee. International organizations, govern- mental and non-governmental, in liaison with isO, alsotake part in the work. Draft International Standards adopted by the technical committees are circulated to themember bodies forapprovalbefore their acceptance as International Standards by the ISo Council. They are approved in accordance with ISO procedures requiring at least 75 % approval by the member bodies voting. International Standard ISO6741-2was prepared by Technical Committee ISO/TC 38, Textiles. Users should note that all International Standards undergo revision from time to time and that any reference made herein to any other International Standard implies its latest edition, unless otherwise stated. InternationalOrganizationforStandardization,1987 Printed in Switzerland INTERNATIONALSTANDARD ISO6741-2:1987 (E) Textiles - Fibres and yarns s Determination of commercial mass of consignments Part 2 : Methods for obtaining laboratory samples 0 Introduction The procedures comprise: This document forms part 3 of a four-part International Stan- dard prepared by ISO/TC 38, Textiles. Nature of consignment Procedure described Hand sampling (two methods) Bulk staple in bales Part 1:Mass determination and calculations Core sampling Part 2: Methods for obtaining laboratory samples. Tow and strands in bales Hand sampling and cases Part 3: Specimen cleaning procedures. Unsupported wound or coiled packages of raw silk, tow Hand sampling sliver, top or yarn in Part 4:Values used for the commercial allowances and the containers commercial moisture regains. (Technical Report.) Cutting method Yarn wound on supports Winding (four methods) The terminology used in this International Standard is in ac- cordance with ISO 6348. Most contracts of sale between buyer and seller specify either When a replicate sample is required for other tests or as a pre- that the invoice mass of a consignment shall be determined by caution against misadventure, the mass taken during sampling an independent third party, or that the seller's figure'may be shall be doubled and the sample shall then immediately be subject to an independent third-party check. This part of halved to provide the two samples. ISO 6741 describes the methods which are to be used by the in- dependent third party in these cases. The figure for the com- mercial mass which results from the application of the pro- References cedures in this part of iSo 6741 either becomes the invoice mass of the consignment or is compared with the declared ISO6348,Textiles-Determination of mass-Vocabulary. invoice mass plus or minus the tolerance agreed between the buyer and seller. ISo 6741, Textiles-Fibres and yarns --Determination of commercialmassofconsignments It is not intended that the methods in this part of ISo 6741 necessarily be used by the seller to establish his invoice mass. -Part1:Massdeterminationandcalculations. The methods described in this part of iSo 6741 are, for the -Part4:Values used forthe commercialallowancesand most part,destructive. the commercial moisture regains. (Technical Report.) Scopeand field of application 3 Principle This part of iSO 6741 s