ISO INTERNATIONAL STANDARD 14820-1 First edition 2016-05-01 Fertilizers and liming materials - Sampling and sample preparation - Part 1: Sampling Engrais et amendements mineraux basiques-Echantillonnage et preparation de I'échantillon - Partie 1: Echantillonnage Reference number ISO 14820-1:2016(E) ISO Intemational Organization for Standardization @IS02016 =ZHEJIANG INST OF STANDARDIZATION C15956617 ed without license from IHS IS014820-1:2016(E) COPYRIGHTPROTECTEDDOCUMENT IS02016,Published in Switzerland 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 Ch. de Blandonnet 8.CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +4122 749 09 47 [email protected] www.iso.org Uicensee-ZHEJIANG INSTOF STANDARDIZRoISQ,6-All rights reserved etworking permitted without license from IHS Not for Resale, 2016/7/20 03:26:2 IS0 14820-1:2016(E) Contents Page Foreword ..V Introduction.. ...vi 1 Scope.. 2 Normative references 3 Terms and definitions 4 Sampling plans and quantitative data .2 4.1 General .2 4.2 Sampling plans.. .3 4.2.1 Determination of the number of sampling units which form the sampled portion3 4.2.2 Identificationofthesamplingunitstobesampled. 4 4.2.3 Collection of increments 4 4.3 Quantitativedata ..5 4.3.1 Massofincrements .5 4.3.2 Mass of singleaggregate/reduced samples .5 4.3.3 Mass of multiple aggregate samples .5 4.3.4 Mass of final sample. .5 5 Incremental sampling methods .5 5.1 General .5 5.2 Solid fertilizer in bulk being moved by conveyor belt -Stopping the belt method 5 5.2.1 General 5.2.2 Principle .6 5.2.3 Apparatus. ..6 5.2.4 Procedure 6 5.3 Solidfertilizerinbulk-Mechanicalsamplingwhileinmotion .6 5.3.1 General. 6 5.3.2 Procedure .7 5.4 Solid fertilizer in bulk-Manual sampling from falling stream .7 5.4.1 Principle .7 5.4.2 Apparatus. .7 5.4.3 Procedure 1 5.5 Solid fertilizer in bulk-Manual samplingmethod by moving the bulk 5.5.1 General. ..8 5.5.2 Procedure. ..9 5.6 Solid fertilizers in packages - Reduction method using a rotary mechanical sample divider. .9 5.6.1 General. .9 5.6.2 Principle 9 5.6.3 Apparatus.. 9 5.6.4 Procedure. .10 5.6.5 Precautions ..11 5.7 Solid fertilizers in packages -Reduction method using a riffle divider ..11 5.7.1 General. ..11 5.7.2 Apparatus. ..11 5.7.3 Procedure. .12 5.8 Sampling of solid fertilizers in packages - Manual method ..13 5.9 Samplingfromintermediatebulkcontainers(IBC's)bycontrolledflow ..14 5.9.1 General ..14 5.9.2 Principle .14 5.9.3 Safety.... ..14 5.9.4 Apparatus. ..15 5.9.5 Obtaining increments ..17 5.9.6 Precautions ..18 iii Licensee=ZHEJIANG INST OF STANDARDIZATION C1 5956617 d without license from IHS Not for Resale, 2016/7/20 03:26:27 No reproduction or networking permi