ISO INTERNATIONAL STANDARD 9138 Second edition 2015-02-01 Abrasive grains - Sampling and splitting Grains abrasifs - Echantillonnage et division Reference number ISO 9138:2015(E) ISO @IS02015 IS0 9138:2015(E) COPYRIGHTPROTECTEDDOCUMENT ISO 2015 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or Iso's member body in the country of the requester. ISO copyright office Case postale 56 . CH-1211 Geneva 20 Tel. + 4122 749 0111 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland i @ IS0 2015 - All rights reserved IS0 9138:2015(E) Contents Page Foreword .iv 1 Scope ..1 2 Normative references ..1 3 Apparatus. .1 3.1 Sampling thief. ..1 3.1.1 General .1 3.1.2 Sampling thief type 1 (with holes) .2 3.1.3 Sampling thief type 2 (with one slot) 2 3.1.4 Sampling thief type 3 (with three to five slots) .2 3.1.5 Sampling thief type 4 (motor driven) 2 3.2 Splitter. .3 4 Procedure ..4 4.1 General 4 4.2 Sampling from big-bags or "drums" .4 4.2.1 With sampling thief, type 1 4 4.2.2 With sampling thief (motor driven), type 4 5 4.3 Sampling from paper-bags. 5 4.4 Sample preparation 5 4.4.1 General .5 4.4.2 Splitting by using a splitter 5 4.4.3 Splitting by quartering manually .5 4.5 Segregation .5 Bibliography 6 isn ta tandardzaon rights reserved iii