ISO INTERNATIONAL STANDARD 9136-2 First edition 1999-10-15 Abrasive grains Determination of bulk density - Part 2: Microgrits Grains abrasifs Détermination de la masse volumique apparente Partie 2: Micrograins ISO Referencenumber ISO 9136-2:1999(E) by IHS under lic itted without license from IHS Not for Resale ISO 9136-2:1999(E) Foreword ISO(theInternationalOrganizationforStandardization)isaworldwidefederationofnationalstandardsbodies(lso member bodies). The work of preparing International Standards is normally carried out through ISO technical the right to be represented on that committee. International organizations, governmental and non-governmental, in liaisonwithIsO,alsotakepartinthework.lsOcollaboratescloselywiththeInternationalElectrotechnica Commission (IEC) on all matters of electrotechnical standardization, International Standards are drafted in accordance with the rules given in the ISO/lE Directives, Part 3. 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. International Standard ISO 9136-2 was prepared by Technical Committee ISO/TC 29, Small tools, Subcommittee SC5,Grindingwheelsandabrasives IsO 9136 consists of the following parts, under the general title Abrasive grains Determination of bulk density: Part1:Macrogrits[CurrentlyISO9136:1989] —Part2:Microgrits @ISO1999 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic nternationalOrganizationforStandardization Casepostale56·CH-1211Geneve20·Switzerland Internet [email protected] Printed in Switzerland ational Organization for Standardizatior ISO 9136-2:1999(E) INTERNATIONALSTANDARD @ISO Abrasive grains Determination of bulk density - Part 2: Microgrits 1 Scope This part of isO 9136 specifies a test method for the determination of the bulk density of bonded and coated abrasive microgrits. 2 Term and definition For the purposes of this part of ISO 9136, the following term and definition apply 2.1 bulk density PB this, of a pourable abrasive grain which is poured in a certain way, is the quotient of the mass and the volume. specified in g/cm3 3 Testing equipment The testing equipment is shown in Figure 1. ed without license from IHS Not for Resale