ISO INTERNATIONAL STANDARD 3954 Second edition 2007-09-01 Powders for powder metallurgical Sampling purposes : Poudres pour emploi en métallurgie des poudres - Echantillonnage Reference number ISO 3954:2007(E) @ ISO 2007 vided by IHS under licens User=Spller, Kevin ISO 3954:2007(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by IsO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below COPYRIGHTPROTECTEDDOCUMENT @ ISO2007 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, IsO's member body in the country of the requester. ISO copyright office Case postale 56 . CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland @ Iso 2007 - All rights reserved es/111111001. User=Spiller, Kevin I without license from IHS ISO 3954:2007(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 non-governmental, in liaison with isO, also take part in the work. isO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards 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. rights. IsO shall not be held responsible for identifying any or all such patent rights. ISO 3954 was prepared by Technical Committee ISO/TC 119, Power metallurgy, Subcommittee SC 2, Thissecondeditioncancelsandreplacesthefirstedition(lSO3954:1977),whichhasbeentechnicallyrevised ii aadizao neworkingmitedwithout licenefrmH INTERNATIONAL STANDARD ISO3954:2007(E) Powders for powder metallurgical purposes Sampling 1 Scope purposes. It also covers the splitting of the sample into the quantity required for testing. 2 Terms and definitions For the purposes of this document, the following terms and definitions apply (see also Figure 1) 2.1 lot quantity of powder processed or produced under conditions that are presumed uniform 2.2 increment quantity of powder obtained by a sampling device at one time from a single lot 2.3 gross sample quantity of powder, adequate for the tests to be performed, consisting of all the increments taken from a single lot 2.4 composite sample blended entire gross sample or part thereof NOTE 1 Alternatively, it may be obtained by splitting the lot. NOTE 2 However it is obtained, it is essential that it be thoroughly blended. 2.5 test sample pieces NOTE It is normally taken by spliting the composite sample. 2.5.1 test portion definite quantity of powder drawn from the test sample (or, if both are the same, from the composite sample) and onwhichthetestis carried out 2.5.2 test piece testspecimen object of specified form prepared from a test sample Copyright Intemational Org