ISO INTERNATIONAL STANDARD 6741-1 Second edition 1989-07-01 Textiles - Fibres and yarns -- Determination of commercial mass of consignments Part 1: Mass determinationand calculations Textiles - Fibres et fils - Determination de la masse commerciale d'un lot - Partie 1: Determination de la masse et modes de calcul Reference number ISO 6741-1 : 1989 (E) ISO6741-1:1989(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 body interested in a subject for which a technical committee has been established has the right tobe represented on that committee.International organizations,govern- mental and non-governmental,in liaisonwithisO,also takepartinthe work.Iso collaborates closely with the International Electrotechnical Commission (IEC) on all mattersofelectrotechnicalstandardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for approval before 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 ISO 6741-1 was prepared by Technical Committee ISO/TC 38, Textiles. This second edition cancels and replaces the first edition (IS0 6741-1 : 1987), of which dryingtemperaturespecifiedforsilkintable1. yarns-Determinationofcommercialmassofconsignments: - Part 1:Mass determination and calculations 一 Part 2:Methods for obtaining laboratory samples - Part3:Specimen cleaningprocedures Part4:Values usedforthe commercialallowances andthe commercial moisture regains (TechnicalReport) Annexes A, B and C form an integral part of this part of iSO 6741. Annex D is for infor- mation only. ISO 1989 All rights reserved. No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. International Organization for Standardization Case postale 56.CH-1211 Geneve 20·Switzerland Printed in Switzerland i ISO6741-1:1989（E) Introduction Most contracts of sale between buyer and seller specify either that the invoice mass of a consignment shall be determined by an independent third party, or that the seller's figure may be subject to an independent third-party check. ISO 6741, parts 1 to 3, describes the methods which are to be used by the independent third party in these cases. The figure for the commercial mass which results from the application of the procedures in this part of ISO 6741 either becomes the invoice mass of the consign- ment or is compared with the declared invoice mass plus or minus the tolerance agreeed between the buyer and selier. It is not intended that the methods in this part of iso 6741 necessarily be used by the seller to establish his invoice mass. The methods described in this part of ISO 6741 are, for the most part, destructive. The terminology used in this and other parts of ISo 6741 is in accordance with ISO 6348. ii