ISO 14820-2-2016 Fertilizers and liming materials - Sampling and sample preparation - Part 2 Sample preparation《肥料和石灰材料 取样和试样制备 第2部分 试样制备》.pdf
《ISO 14820-2-2016 Fertilizers and liming materials - Sampling and sample preparation - Part 2 Sample preparation《肥料和石灰材料 取样和试样制备 第2部分 试样制备》.pdf》由会员分享,可在线阅读,更多相关《ISO 14820-2-2016 Fertilizers and liming materials - Sampling and sample preparation - Part 2 Sample preparation《肥料和石灰材料 取样和试样制备 第2部分 试样制备》.pdf(14页珍藏版)》请在麦多课文档分享上搜索。
1、 ISO 2016 Fertilizers and liming materials Sampling and sample preparation Part 2: Sample preparation Engrais et amendements minraux basiques chantillonnage et prparation de lchantillon Partie 2: Prparation des chantillons INTERNATIONAL STANDARD ISO 14820-2 First edition 2016-05-01 Reference number
2、ISO 14820-2:2016(E) ISO 14820-2:2016(E)ii ISO 2016 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO 2016, 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 mecha
3、nical, 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 ISOs member body in the country of the requester. ISO copyright office Ch. de Blandonnet 8 CP 401 CH-1214 Vernier, Geneva, S
4、witzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 copyrightiso.org www.iso.org ISO 14820-2:2016(E)Foreword iv Introduction v 1 Scope . 1 2 Normative references 1 3 T erms and definitions . 1 4 Principle 2 5 Apparatus . 2 6 Procedure. 3 6.1 General . 3 6.2 Preparation of test samples in their ori
5、ginal condition . 3 6.3 Further preparation of test samples which are to remain in their original condition 3 6.3.1 General 3 6.3.2 Preparation of test portions for physical testing . 3 6.3.3 Preparation of test portions for moisture analysis 3 6.3.4 Preparation of test portions for other chemical a
6、nalyses 4 6.4 Further preparation of test samples for chemical analysis 4 6.4.1 General 4 6.4.2 Use of sample grinder . . 4 6.4.3 Use of mortar and pestle . 4 6.5 Products which are difficult to grind mechanically. 4 6.6 Organic matter 5 6.7 Fertilizers comprising several different materials . 5 6.8
7、 Fluid fertilizers 5 6.9 Foreign matter . 5 6.10 Storage . 5 6.11 Taking test portions 5 6.11.1 Solid fertilizers 5 6.11.2 Fluid fertilizers 5 7 Labelling 5 8 Sample preparation report 6 Bibliography 7 ISO 2016 All rights reserved iii Contents Page ISO 14820-2:2016(E) Foreword ISO (the International
8、 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 est
9、ablished has the right to be represented on that committee. International organizations, governmental and 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 standardiz
10、ation. The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance w
11、ith the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives). Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of an
12、y patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents). Any trade name used in this document is information given for the convenience of users and does not constitute an endorsemen
13、t. For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information ISO 14820-2:2016 was pre
14、pared by CEN/TC 260, Fertilizers and liming materials (as EN 1482-2:2007) and was adopted without modification other than those stipulated below by ISO/TC 134, Fertilizers and soil conditioners. The EN references (EN 1482-1 and EN 1482-2) have been changed to ISO references (ISO 14820-1 and ISO 1482
15、0-2). The definition in 3.2 have been modified slightly to align it with that in ISO 8157:2015. ISO 8157 has been added to the Bibliography. Clause 5 has been renumbered. In 5.4 (formerly 5.5) and 6.4.2, notes have been changed to full text. ISO 14820 consists of the following parts, under the gener
16、al title Fertilizers and liming materials Sampling and sample preparation: Part 1: Sampling Part 2: Sample preparationiv ISO 2016 All rights reserved ISO 14820-2:2016(E) Introduction This part of ISO 14820 covers the following aspects of sample preparation, derived from the International Standards a
17、nd documents indicated but presented in a simplified and condensed form. The titles of these International Standards are given in the Bibliography. Reduction and preparation of samples for analysis: ISO 7410, ISO 7742, ISO 8358 and EEC 77 /535 (superseded by Regulation (EC) No 2003/2003); Sampling r
18、eports: ISO 5306 and EEC 77 /535 (superseded by Regulation (EC) No 2003/2003). ISO 14820-1 covers the sampling of fertilizers and liming materials. Figure 1 gives a schematic diagram of the sampling and sample preparation process for solids. ISO 2016 All rights reserved v ISO 14820-2:2016(E) Figure
19、1 Schematic diagram of sampling process for solidsvi ISO 2016 All rights reserved INTERNATIONAL ST ANDARD ISO 14820-2:2016(E) Fertilizers and liming materials Sampling and sample preparation Part 2: Sample preparation 1 Scope This part of ISO 14820 specifies methods for the reduction and preparation
20、 of samples of fertilizers and liming materials and sets out the requirements for sample preparation reports. It also specifies methods for the preparation of test samples and test portions from laboratory samples of fertilizer for subsequent chemical or physical analysis. It does not cover the prep
21、aration of samples for certain physical tests which require test portions of more than 2 kg. It is applicable to all fertilizers. NOTE The term “fertilizer” is used throughout the body of this part of ISO 14820 and is taken to include liming materials unless otherwise indicated. 2 Normative referenc
22、es The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO
23、3310-1, Test sieves Technical requirements and testing Part 1: Test sieves of metal wire cloth ISO 14820-1:2016, Fertilizers and liming materials Sampling and sample preparation Part 1: Sampling 3 T erms a nd definiti ons For the purposes of this document, the following terms and definitions apply.
24、3.1 division process of producing a number of representative smaller portions, approximately equal in mass to each other, from a larger mass 3.2 f i n a l s a m p l e representative part of the reduced sample or, where no intermediate reduction is required, of the aggregate sample Note 1 to entry: O
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