BS ISO 17323-2015 Fertilizers and soil conditioners Sulfur Coated Urea (SCU) General requirements《肥料和土壤调理剂 硫包衣尿素 (SCU) 通用要求》.pdf
《BS ISO 17323-2015 Fertilizers and soil conditioners Sulfur Coated Urea (SCU) General requirements《肥料和土壤调理剂 硫包衣尿素 (SCU) 通用要求》.pdf》由会员分享,可在线阅读,更多相关《BS ISO 17323-2015 Fertilizers and soil conditioners Sulfur Coated Urea (SCU) General requirements《肥料和土壤调理剂 硫包衣尿素 (SCU) 通用要求》.pdf(18页珍藏版)》请在麦多课文档分享上搜索。
1、BSI Standards PublicationBS ISO 17323:2015Fertilizers and soil conditioners Sulfur Coated Urea (SCU) General requirementsBS ISO 17323:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 17323:2015.The UK participation in its preparation was entrusted to Techni
2、calCommittee CII/37, Fertilisers and related chemicals.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The Britis
3、h Standards Institution 2015. Published by BSI StandardsLimited 2015ISBN 978 0 580 76272 7ICS 65.080Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 June 2015.Am
4、endments issued since publicationDate Text affectedBS ISO 17323:2015 ISO 2015Fertilizers and soil conditioners Sulfur Coated Urea (SCU) General requirementsMatires fertilisantes Ure enrobe de soufre (SCU) Exigences gnralesINTERNATIONAL STANDARDISO17323First edition2015-06-01Reference numberISO 17323
5、:2015(E)BS ISO 17323:2015ISO 17323:2015(E)ii ISO 2015 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2015, Published in SwitzerlandAll 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 mech
6、anical, 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 officeCh. de Blandonnet 8 CP 401CH-1214 Vernier, Geneva, Swi
7、tzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgBS ISO 17323:2015ISO 17323:2015(E)Foreword ivIntroduction v1 Scope . 12 Normative references . 13 Terms and definitions . 14 Requirements 24.1 Appearance 24.2 Requirement of sulfur coated urea 25 Sampling and preparation of
8、test sample 25.1 Sampling method 25.1.1 Products in bags . 25.1.2 Products in bulk 25.2 Reduction of samples 35.3 Test sample preparation . 36 Marking and labelling . 37 Packaging, transport, and storage . 4Annex A (informative) Some examples for SCU . 5Bibliography 6 ISO 2015 All rights reserved ii
9、iContents PageBS ISO 17323:2015ISO 17323:2015(E)ForewordISO (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 me
10、mber body interested in a subject for which a technical committee has been established 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 E
11、lectrotechnical Commission (IEC) on all matters of electrotechnical standardization.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 type
12、s of ISO documents should be noted. This document was drafted in accordance with 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 h
13、eld responsible for identifying any or all such patent rights. Details of any 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 informati
14、on given for the convenience of users and does not constitute an endorsement.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 f
15、ollowing URL: Foreword Supplementary information .The committee responsible for this document is ISO/TC 134, Fertilizers and soil conditioners.iv ISO 2015 All rights reservedBS ISO 17323:2015ISO 17323:2015(E)IntroductionSulfur Coated Urea (SCU) is a coated slow release fertilizer consisting of urea
16、particles coated with sulfur, which was first developed by the Tennessee Valley Authoritys National Fertilizer Development Center (TVA/NFDC), Alabama in 1961, and produced commercially in 1967. SCU is made by coating urea with sulfur and sealant. The main coating material of SCU is sulfur. Sulfur is
17、 insoluble in water and its chemical properties are stable, thus it is an impermeable coating material. In addition, sulfur itself is a secondary nutrient and it does not pollute the soil when applied appropriately.This International Standard specifies general requirements, sampling, and preparation
18、 of test sample, marking and labelling, packaging, transport, and storage for SCU.NOTE Some countries or regions might have published other standards covering requirements for SCU. ISO 2015 All rights reserved vBS ISO 17323:2015BS ISO 17323:2015Fertilizers and soil conditioners Sulfur Coated Urea (S
19、CU) General requirements1 ScopeThis International Standard specifies general requirements, sampling and preparation of test sample, marking and labelling, packaging, transport, and storage for SCU.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this
20、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 7409, Fertilizers Marking Presentation and declarationsISO 7410, Fertilizers and soil
21、 conditioners Final samples Practical arrangementsISO 7742, Solid fertilizers Reduction of samplesISO 8157, Fertilizers and soil conditioners VocabularyISO 8633, Solid fertilizers Simple sampling method for small lotsISO 17322, Fertilizers and soil conditioners Analytical Methods for SCU3 Terms and
22、definitionsFor the purposes of this document, the following terms and definitions apply.3.1sulfur coated ureaSCUcoated controlled release fertilizer consisting of urea particles coated with sulfurNote 1 to entry: The product is usually further coated with a sealant and, if necessary, a conditioner t
23、o avoid tackiness from the sealant.SOURCE: ISO 8157, 2.2.1.123.2slow-release fertilizersfertilizer, of which, by hydrolysis and/or by biodegradation and/or by limited solubility, the nutrients available to plants is spread over a period of time, when compared to a “reference soluble ” product, e.g.
24、ammonium sulfate, ammonium nitrate, and ureaSOURCE: ISO 8157, 2.1.113.3controlled-release fertilizersfertilizer in which nutrient release is controlled, meeting the stated release rate of nutrient and the stated release time at a specified temperatureNote 1 to entry: Typical examples are coated fert
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