EN ISO 21294-2017 en Oilseeds - Manual or automatic discontinuous sampling.pdf

《EN ISO 21294-2017 en Oilseeds - Manual or automatic discontinuous sampling.pdf》由会员分享，可在线阅读，更多相关《EN ISO 21294-2017 en Oilseeds - Manual or automatic discontinuous sampling.pdf（20页珍藏版）》请在麦多课文档分享上搜索。

1、Oilseeds - Manual or automatic discontinuous sampling (ISO 21294:2017)BS EN ISO 21294:2017BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 21294 September 2017 ICS 67.200.20 Supersedes EN ISO 542:1995English Ver

2、sion Oilseeds - Manual or automatic discontinuous sampling (ISO 21294:2017) Graines olagineuses - chantillonnage discontinu manuel ou automatique (ISO 21294:2017) lsamen - Manuell oder automatisch diskontinuierliche Probenahme (ISO 21294:2017) This European Standard was approved by CEN on 29 August

3、2017. 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 national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtaine

4、d 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 version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-C

5、ENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, I

6、taly, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management C

7、entre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 21294:2017 ENational forewordThis British Standard is the UK implementation of EN ISO 21294:2017. It is identical to ISO 21294:2017.

8、It supersedes BS EN ISO 542:1995, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee AW/307, Oilseeds, animal and vegetable fats and oils and their by-products.A list of organizations represented on this committee can be obtained on request to its secreta

9、ry.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2017 Published by BSI Standards Limited 2017ISBN 978 0 580 83822 4ICS 67.200.20Compliance with a British Standard cannot co

10、nfer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 October 2017.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN ISO 21294:2017EUROPEAN STANDARD NORME EUROPENNE EUROPIS

11、CHE NORM EN ISO 21294 September 2017 ICS 67.200.20 Supersedes EN ISO 542:1995English Version Oilseeds - Manual or automatic discontinuous sampling (ISO 21294:2017) Graines olagineuses - chantillonnage discontinu manuel ou automatique (ISO 21294:2017) lsamen - Manuell oder automatisch diskontinuierli

12、che Probenahme (ISO 21294:2017) This European Standard was approved by CEN on 29 August 2017. 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 national standard without any alteration. Up-to-dat

13、e 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 version in any other language made by translation

14、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, Czech Republic, Denmark, Estonia, Finland, Form

15、er Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATIO

16、N COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 21294:2017 EBS EN ISO 21294:2017EN ISO 21294:

17、2017 (E) 3 European foreword This document (EN ISO 21294:2017) has been prepared by Technical Committee ISO/TC 34 “Food products” in collaboration with Technical Committee CEN/TC 307 “Oilseeds, vegetable and animal fats and oils and their by-products - Methods of sampling and analysis” the secretari

18、at of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by March 2018, and conflicting national standards shall be withdrawn at the latest by March 2018. Attention is drawn to t

19、he possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 542:1995. According to the CEN-CENELEC Internal Regulations, the national standards organiza

20、tions of the following countries are bound to implement this European 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, Mal

21、ta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 21294:2017 has been approved by CEN as EN ISO 21294:2017 without any modification. ISO 21294:2017(E)Foreword ivIntroduction v1

22、 Scope . 12 Normative references 13 Terms and definitions . 14 Principles . 24.1 Representative samples 24.2 Oilseeds sampling . 25 Equipment and devices 36 Time and place of sampling and limitation of the size of lots . 36.1 General information . 36.2 Bulk transfer . 36.2.1 General 36.2.2 Transfer

23、to lorries and wagons . 36.2.3 Transfer to barges . 36.2.4 Transfer to silos or warehouses 46.3 Lot size: number of laboratory samples 47 Method for taking samples 57.1 General information . 57.2 Number of increments . 57.2.1 General requirements on taking increments . 57.2.2 Products in bags . 57.2

24、.3 Products in bulk 57.2.4 Aggregation of the bulk sample 67.2.5 Division of the bulk sample 67.2.6 Sample dividers 78 Sample size per lot and for dispatch to the laboratory 89 Packing and labelling of samples 89.1 Packing of samples 89.2 Labelling of samples . 810 Dispatch of samples . 911 Sampling

25、 report. 9Annex A (informative) Steps for laboratory samples .10Annex B (informative) Instruments used to sample static products .11 ISO 2017 All rights reserved iiiContents PageBS EN ISO 21294:2017ISO 21294:2017(E)Foreword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions .

26、 14 Principles . 24.1 Representative samples 24.2 Oilseeds sampling . 25 Equipment and devices 36 Time and place of sampling and limitation of the size of lots . 36.1 General information . 36.2 Bulk transfer . 36.2.1 General 36.2.2 Transfer to lorries and wagons . 36.2.3 Transfer to barges . 36.2.4

27、Transfer to silos or warehouses 46.3 Lot size: number of laboratory samples 47 Method for taking samples 57.1 General information . 57.2 Number of increments . 57.2.1 General requirements on taking increments . 57.2.2 Products in bags . 57.2.3 Products in bulk 57.2.4 Aggregation of the bulk sample 6

28、7.2.5 Division of the bulk sample 67.2.6 Sample dividers 78 Sample size per lot and for dispatch to the laboratory 89 Packing and labelling of samples 89.1 Packing of samples 89.2 Labelling of samples . 810 Dispatch of samples . 911 Sampling report. 9Annex A (informative) Steps for laboratory sample

29、s .10Annex B (informative) Instruments used to sample static products .11 ISO 2017 All rights reserved iiiContents PageBS EN ISO 21294:2017ISO 21294:2017(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The

30、 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 established has the right to be represented on that committee. International organizations, governmental and non-gove

31、rnmental, in liaison 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

32、 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 with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).Attention is drawn to the po

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

34、 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 endorsement.For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and expressions related

35、to conformity assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html.This document was prepared by Technical Committee ISO/TC 34, Food products, Subcommitte

36、e SC 2, Oleaginous seeds and fruits and oilseed meals.This first edition of ISO 21294, together with ISO 21293, cancels and replaces ISO 542:1990, which has been technically revised.iv ISO 2017 All rights reservedBS EN ISO 21294:2017ISO 21294:2017(E)ForewordISO (the International Organization for St

37、andardization) 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 established has the rig

38、ht 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 standardization.The procedures

39、 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 with the editorial rul

40、es 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 any patent rights identi

41、fied 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 endorsement.For an explanation on

42、 the voluntary nature of standards, the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/forewor

43、d.html.This document was prepared by Technical Committee ISO/TC 34, Food products, Subcommittee SC 2, Oleaginous seeds and fruits and oilseed meals.This first edition of ISO 21294, together with ISO 21293, cancels and replaces ISO 542:1990, which has been technically revised.iv ISO 2017 All rights r

44、eserved ISO 21294:2017(E)IntroductionMost oilseeds are marketed on the basis of the result of analysis of the samples representing lots, and disputes are invariably settled by reference to these samples. Careless or inaccurate sampling practices could lead to misunderstandings, delays and unwarrante

45、d financial adjustments.Correct sampling is a difficult process and one that requires the most careful attention. Emphasis cannot therefore be too strongly laid on the necessity of obtaining a representative sample of oilseeds for analysis. ISO 2017 All rights reserved vBS EN ISO 21294:2017Oilseeds

46、Manual or automatic discontinuous sampling1 ScopeThis document specifies the requirements for discontinuous sampling of oilseeds, using the manual or automatic method, for the purpose of assessing their quality and condition.NOTE An example of “condition” is an odour due to a treatment product.2 Nor

47、mative referencesThe following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any a

48、mendments) applies.ISO 664, Oilseeds Reduction of laboratory sample to test sample3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.ISO and IEC maintain terminological databases for use in standardization at the following addresses: IEC Electropedia:

49、 available at http:/www.electropedia.org/ ISO Online browsing platform: available at http:/www.iso.org/obp3.1discontinuous samplingsampling by automatic or manual means of at least one position within a lot (3.3) of both static and moving oilseedsNote 1 to entry: Manual sampling of moving oilseeds is considered discontinuous sampling.Note 2 to entry: For comparison, continuous sampling is the automatic uninterrupted sampling of moving oilseeds within a lot across the entire flow (for example, a permanent sampling system on a conveyor belt or