EN ISO 2588-2012 en Leather - Sampling - Number of items for a gross sample《皮革 取样 总样本的条目数》.pdf

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1、BSI Standards PublicationBS EN ISO 2588:2014Leather Sampling Numberof items for a gross sampleBS EN ISO 2588:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO 2588:2014.The UK participation in its preparation was entrusted to TechnicalCommittee TCI/69, Fo

2、otwear, leather and coated fabrics.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 British Standards Institut

3、ion 2014. Published by BSI StandardsLimited 2014ISBN 978 0 580 78788 1ICS 59.140.30Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 July 2014.Amendments issued s

4、ince publicationDate Text affectedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 2588 July 2014 ICS 59.140.30 English Version Leather - Sampling - Number of items for a gross sample (ISO 2588:2014) Cuir - chantillonnage - Nombre dunits lmentaires de lchantillon global (ISO 2588:2014) Leder

5、 - Probenentnahme - Anzahl der Einzelstcke fr eine Gesamtprobe (ISO 2588:2014) This European Standard was approved by CEN on 4 July 2014. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a nationa

6、l standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A versio

7、n in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Cze

8、ch Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. E

9、UROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 2588:2014

10、 EBS EN ISO 2588:2014EN ISO 2588:2014 (E) 3 Foreword This document (EN ISO 2588:2014) has been prepared by IULTCS “International Union of Leather Technologists and Chemists Societies“ in collaboration with Technical Committee CEN/TC 289 “Leather” the secretariat of which is held by UNI. This Europea

11、n Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by January 2015, and conflicting national standards shall be withdrawn at the latest by January 2015. Attention is drawn to the possibility that some of the elemen

12、ts of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this Euro

13、pean Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slo

14、venia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 2588:2014 has been approved by CEN as EN ISO 2588:2014 without any modification. BS EN ISO 2588:2014ISO 2588:2014(E)IULTCS/IUF 110:2014(E) ISO 2014 All rights reserved iiiContents PageForeword iv1 Sc

15、ope . 12 Normative references 13 Terms and definitions . 14 Method of sampling . 15 Sampling report. 2BS EN ISO 2588:2014ISO 2588:2014(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing

16、International Standards is normally carried out through ISO technical committees. Each member 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 liaiso

17、n with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical 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 Direct

18、ives, 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 with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).Attention is drawn to the possibility that some

19、 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 any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarat

20、ions 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 endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about

21、 ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationIULTCS, originally formed in 1897, is a world-wide organization of professional leather societies to further the advancement of leather science and technology. IU

22、LTCS has three Commissions, which are responsible for establishing international methods for the sampling and testing of leather. ISO recognizes IULTCS as an international standardizing body for the preparation of test methods for leather.ISO 2588 was originally prepared in 1973 and modified in 1985

23、. This, the third edition, was prepared by the Fastness Tests Commission of the International Union of Leather Technologists and Chemists Societies (IUF Commission, IULTCS) in collaboration with the European Committee for Standardization (CEN) Technical Committee CEN/TC 289, Leather, the secretariat

24、 of which is held by UNI, in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).This third edition of ISO 2588 cancels and replaces the second edition (ISO 2588:1985). Clause 4 has been modified to allow for different numbers of items according to the type

25、of testing being undertaken.IULTCS/IUF 110:2014(E)iv ISO 2014 All rights reservedBS EN ISO 2588:2014INTERNATIONAL STANDARD ISO 2588:2014(E)Leather Sampling Number of items for a gross sample1 ScopeThis International Standard specifies a method for the drawing, from a lot, of whole pieces of leather

26、to form a gross sample.The method is applicable to all kinds of leather of any type of tannage.NOTE This International Standard does not cover marking and storage of the gross sample.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and a

27、re 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 3534-2, Statistics Vocabulary and symbols Part 2: Applied statistics3 Terms and definitionsFor the

28、purposes of this document, the terms and definitions in ISO 3534-2 apply. For leather sampling, the following interpretations apply.3.1lotbatchdefinite quantity of leather manufactured or produced under conditions which are presumed uniform3.2gross samplenumber of items collected as a sample from a

29、lot3.3itemwhole piece of leather that belongs to the gross sample4 Method of sampling4.1 In the absence of any other agreement on a sampling procedure between the interested parties or in the test method, the procedure described in 4.2 and 4.3 is recommended.4.2 The number of items in a gross sample

30、 depends on the size of the lot and purpose of the sampling. The number will depend on the reliability of the test results, the variation in the properties and the error inherent in the testing procedure.4.3 The minimum number of items in a gross sample is given in Table 1. ISO 2014 All rights reser

31、ved 1BS EN ISO 2588:2014ISO 2588:2014(E)Table 1 The minimum number of itemsNumber of leathers in lot Non-destructive testinga Destructive testingb 1 10 2 111 50 3 251 100 4 3101 500 5 4 500 10 5aNon-destructive testing is when the item is not damaged and can be returned to the lot.bDestructive testi

32、ng is when the item after testing is not able to be returned to the lot, for example when test pieces have been cut out.4.4 The selection of pieces from the lot to form items of the gross sample shall be done in a manner ensuring truly random sampling, for example, by numbering the pieces in order a

33、nd then choosing the pieces by number, using a table of random numbers.5 Sampling reportThe sampling report shall include the following information:a) reference to this International Standard, i.e. ISO 2588;b) identification of the lot or lots;c) the size of the lot (i.e. total number of pieces avai

34、lable);d) the number of items in the gross sample that have been selected from each lot;e) any unusual features noted during the sampling operation;f) any operation carried out which is not specified in this International Standard, and details of any alternative procedure used.IULTCS/IUF 110:2014(E)

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