1、BSI Standards PublicationBS EN ISO 6498:2012Animal feeding stuffs Guidelines for samplepreparation (ISO 6498:2012)BS EN ISO 6498:2012Incorporating corrigendum August 2015BS EN ISO 6498:2012 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO 6498:2012.It superse
2、des BS 5766-10:1999 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee AW/10, Animal feeding stuffs.A list of organizations represented on this committee can be obtainedon request to its secretary.This publication does not purport to include all the necess
3、ary provisionsof a contract. Users are responsible for its correct application. The British Standards Institution 2015.Published by BSI Standards Limited 2015ISBN 978 0 580 91491 1 ICS 65.120 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was p
4、ublished under the authority of the StandardsPolicy and Strategy Committee on 31 July 2012.Amendments/corrigenda issued since publicationDate Text affected30 September 2015 Implementation of ISO corrected text 15 July2012: Clause 7.1 updated.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 6
5、498 June 2012 ICS 65.120 English Version Animal feeding stuffs - Guidelines for sample preparation (ISO 6498:2012) Aliments des animaux - Lignes directrices pour la prparation des chantillons (ISO 6498:2012) Futtermittel - Leitfaden fr die Probenvorbereitung (ISO 6498:2012) This European Standard wa
6、s approved by CEN on 31 May 2012. 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 natio
7、nal 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 under the responsibility of a CEN member into its own langua
8、ge 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvi
9、a, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000
10、 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 6498:2012: EBS EN ISO 6498:2012EN ISO 6498:2012 (E) 3 Foreword This document (EN ISO 6498:2012) has been prepared by Technical Committee CEN/TC 327 “Animal feeding
11、stuffs - Methods of sampling and analysis“, the secretariat of which is held by NEN, in collaboration with Technical Committee ISO/TC 34 “Food products“. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the late
12、st by December 2012, and conflicting national standards shall be withdrawn at the latest by December 2012. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all
13、 such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hung
14、ary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN ISO 6498:2012ISO 6498:2012(E) ISO 2012 All rights reserved iiiContents PageForeword iv1 Scope 12 Te
15、rms and definitions. 12.1 Definitions concerning “sample” 12.2 Definitions concerning “parameters” 22.3 Examples of animal feeding stuffs characteristics 32.4 Definitions concerning “sample preparation procedure” 53 Principle. 64 Consideration of sample preparation errors . 74.1 Subsampling and othe
16、r errors. 74.2 Minimum mass. 84.3 Errors associated with division techniques. 95 Safety precautions 106 Apparatus 107 Procedure 127.1 General.127.2 Sample check .127.3 Mass reduction.147.4 Particle size reduction .177.5 Partial drying 207.6 Coarse grinding .227.7 Special sample preparation procedure
17、s.227.8 Storage.228 Performance tests (quality control)228.1 General.228.2 Performance test for mass reduction (division) .238.3 Performance test for particle size reduction (grinding)248.4 Performance test for mixing.259 Categories of feeds Special remarks and flow charts .259.1 General.259.2 Birds
18、eed.269.3 Whole cottonseed .279.4 Mineral mix299.5 Dry feeds299.6 Forages including silage, hay, haylage, TMR and byproducts .309.7 Oilseeds and high-fat feeds329.8 Large block and molasses block feeds.339.9 Liquid feeds 359.10 Canned pet food 359.11 Semi-moist pet food and dog chews369.12 Premixtur
19、es.379.13 Range and alfalfa hay pellets.389.14 Texturized and sticky feed 399.15 Aquatic feeds40Annex A (informative) Calculations, examples and tables for minimum mass .42Bibliography .46BS EN ISO 6498:2012ISO 6498:2012(E) ISO 2012 All rights reserved iiiContents PageForeword iv1 Scope 12 Terms and
20、 definitions . 12.1 Definitions concerning “sample” 12.2 Definitions concerning “parameters” 22.3 Examples of animal feeding stuffs characteristics 32.4 Definitions concerning “sample preparation procedure” 53 Principle . 64 Consideration of sample preparation errors . 74.1 Subsampling and other err
21、ors . 74.2 Minimum mass . 84.3 Errors associated with division techniques . 95 Safety precautions 106 Apparatus 107 Procedure 127.1 General .127.2 Sample check .127.3 Mass reduction .147.4 Particle size reduction .177.5 Partial drying 207.6 Coarse grinding .227.7 Special sample preparation procedure
22、s .227.8 Storage .228 Performance tests (quality control) 228.1 General .228.2 Performance test for mass reduction (division) .238.3 Performance test for particle size reduction (grinding) 248.4 Performance test for mixing .259 Categories of feeds Special remarks and flow charts .259.1 General .259.
23、2 Birdseed .269.3 Whole cottonseed .279.4 Mineral mix 299.5 Dry feeds 299.6 Forages including silage, hay, haylage, TMR and byproducts .309.7 Oilseeds and high-fat feeds 329.8 Large block and molasses block feeds .339.9 Liquid feeds 359.10 Canned pet food 359.11 Semi-moist pet food and dog chews369.
24、12 Premixtures .379.13 Range and alfalfa hay pellets .389.14 Texturized and sticky feed 399.15 Aquatic feeds 40Annex A (informative) Calculations, examples and tables for minimum mass .42Bibliography .46BS EN ISO 6498:2012ISO 6498:2012(E)ForewordISO (the International Organization for Standardizatio
25、n) 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 right to be rep
26、resented 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.International Standards ar
27、e drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an Internationa
28、l Standard requires approval by at least 75 % of the member bodies casting a vote.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.ISO 6498 was prepare
29、d by the European Committee for Standardization (CEN) Technical Committee TC 327, Animal feeding stuffs Methods of sampling and analysis, in collaboration with ISO Technical Committee TC 34, Food products, Subcommittee SC 10, Animal feeding stuffs, in accordance with the Agreement on technical coope
30、ration between ISO and CEN (Vienna Agreement).This third edition cancels and replaces the second edition (ISO 6498:1998), which has been technically revised.iv ISO 2012 All rights reservedBS EN ISO 6498:2012INTERNATIONAL STANDARD ISO 6498:2012(E)Animal feeding stuffs Guidelines for sample preparatio
31、n1 ScopeThis International Standard specifies guidelines for the preparation of test samples from laboratory samples of animal feeding stuffs, including pet foods.NOTE 1 The guidelines mostly derive from those developed by AAFCO (see Reference 7).The guidelines are overruled by special instructions
32、and regulations for sample preparation demanded by specific analysis methods.NOTE 2 Such analysis methods are developed by ISO and CEN.NOTE 3 This International Standard does not include special guidelines for sample preparation for microbiological analysis of microorganisms like yeasts, bacteria an
33、d moulds. Nonetheless, for microorganisms which are used as feed additives (probiotics), some important aspects of sample preparation are addressed.2 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.2.1 Definitions concerning “sample”2.1.1lotquantity
34、of material that is assumed to be of the same production process and represented by specified sampling rulesNOTE For the purposes of this International Standard, the rules are those of Commission Regulation (EC) No. 152/2009.32.1.2laboratory samplesample as prepared (from the lot) for sending to the
35、 laboratory and intended for inspection or testing2.1.3test samplesubsample or sample prepared from the laboratory sample and from which test portions will be taken2.1.4test portionquantity of material drawn from the test sample (or from the laboratory sample if both are the same)2.1.5reserve sample
36、material left over from the laboratory sample when divided or subsampled test samples have been taken and on which no further particle size reduction is doneNOTE If, for example, mycotoxin or genetically modified organism analyses are done on the whole laboratory sample, then the reserve sample is a
37、lso reduced to the corresponding particle sizes. The reserve sample should be stored under conditions maintaining integrity. ISO 2012 All rights reserved 1This corrected version of ISO 6498:2012 incorporates the following correction: in 7.1, paragraph 4, the phrase “particle sizes below 4 mm 2 mm (4
38、 mm to 6 mm) can be” has been substituted by “particle sizes of 4 mm to 6 mm can be”.BS EN ISO 6498:2012ISO 6498:2012(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Sta
39、ndards 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 liaison with ISO, also
40、take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.The main task of technical committees i
41、s to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote.Attention is drawn to the possibilit
42、y 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.ISO 6498 was prepared by the European Committee for Standardization (CEN) Technical Committee TC 327, Animal feeding stuffs Methods of sam
43、pling and analysis, in collaboration with ISO Technical Committee TC 34, Food products, Subcommittee SC 10, Animal feeding stuffs, in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).This third edition cancels and replaces the second edition (ISO 6498:199
44、8), which has been technically revised.iv ISO 2012 All rights reservedBS EN ISO 6498:2012INTERNATIONAL STANDARD ISO 6498:2012(E)Animal feeding stuffs Guidelines for sample preparation1 ScopeThis International Standard specifies guidelines for the preparation of test samples from laboratory samples o
45、f animal feeding stuffs, including pet foods.NOTE 1 The guidelines mostly derive from those developed by AAFCO (see Reference 7).The guidelines are overruled by special instructions and regulations for sample preparation demanded by specific analysis methods.NOTE 2 Such analysis methods are develope
46、d by ISO and CEN.NOTE 3 This International Standard does not include special guidelines for sample preparation for microbiological analysis of microorganisms like yeasts, bacteria and moulds. Nonetheless, for microorganisms which are used as feed additives (probiotics), some important aspects of sam
47、ple preparation are addressed.2 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.2.1 Definitions concerning “sample”2.1.1lotquantity of material that is assumed to be of the same production process and represented by specified sampling rulesNOTE For t
48、he purposes of this International Standard, the rules are those of Commission Regulation (EC) No. 152/2009.32.1.2laboratory samplesample as prepared (from the lot) for sending to the laboratory and intended for inspection or testing2.1.3test samplesubsample or sample prepared from the laboratory sam
49、ple and from which test portions will be taken2.1.4test portionquantity of material drawn from the test sample (or from the laboratory sample if both are the same)2.1.5reserve samplematerial left over from the laboratory sample when divided or subsampled test samples have been taken and on which no further particle size reduction is doneNOTE If, for example, mycotoxin or genetically modified organism analyses are done on the whole laboratory sample, then the reserve sample is also reduced to the corresponding particle sizes. The reserve s
