BS ISO 3082-2017 Iron ores Sampling and sample preparation procedures《铁矿石 取样和样品制备规程》.pdf

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1、Iron ores Sampling and sample preparation proceduresBS ISO 3082:2017BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06 ISO 2017Iron ores Sampling and sample preparation proceduresMinerais de fer Procdures dchantillonnage et de prparation des chantillonsINTERNATIONAL ST

2、ANDARDISO3082Fifth edition2017-07Reference numberISO 3082:2017(E)National forewordThis British Standard is the UK implementation of ISO 3082:2017. It supersedes BS ISO 3082:2009, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee ISE/58, Iron ores.A list

3、of organizations represented on this committee can be obtained on request to its secretary.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 Lim

4、ited 2017ISBN 978 0 580 86783 5ICS 73.060.10Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 July 2017.Amendments/corrigenda issued since publicationDate Text

5、affectedBRITISH STANDARDBS ISO 3082:2017 ISO 2017Iron ores Sampling and sample preparation proceduresMinerais de fer Procdures dchantillonnage et de prparation des chantillonsINTERNATIONAL STANDARDISO3082Fifth edition2017-07Reference numberISO 3082:2017(E)BS ISO 3082:2017ISO 3082:2017(E)ii ISO 2017

6、All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2017, 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 mechanical, including photocopying, or posting on the inte

7、rnet 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, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyr

8、ightiso.orgwww.iso.orgBS ISO 3082:2017ISO 3082:2017(E)ii ISO 2017 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2017, 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, electr

9、onic or mechanical, 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,

10、 Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgISO 3082:2017(E)Foreword vi1 Scope . 12 Normative references 13 Terms and definitions . 24 General considerations for sampling and sample preparation . 44.1 Basic requirements . 44.2 Establishing a sampling schem

11、e 44.3 System verification 55 Fundamentals of sampling and sample preparation 65.1 Minimization of bias . 65.1.1 General 65.1.2 Minimization of particle size degradation . 65.1.3 Extraction of increments. 65.1.4 Increment mass. 75.2 Overall precision 85.3 Quality variation . 105.4 Sampling precision

12、 and number of primary increments 115.4.1 Mass-basis sampling 115.4.2 Time-basis sampling 115.5 Precision of sample preparation and overall precision 125.5.1 General. 125.5.2 Preparation and measurement of gross sample 135.5.3 Preparation and measurement of partial samples 135.5.4 Preparation and me

13、asurement of each increment 136 Methods of sampling .146.1 Mass-basis sampling . 146.1.1 Mass of increment 146.1.2 Quality variation146.1.3 Number of primary increments . 156.1.4 Sampling interval .156.1.5 Methods of taking increments. 156.2 Time-basis sampling . 156.2.1 Mass of increment 156.2.2 Qu

14、ality variation156.2.3 Number of increments .166.2.4 Sampling interval .166.2.5 Methods of taking increments. 166.3 Stratified random sampling within fixed mass or time intervals .166.3.1 General. 166.3.2 Fixed mass intervals 176.3.3 Fixed time intervals 177 Sampling from moving streams .177.1 Gener

15、al 177.2 Safety of operations . 177.3 Robustness of sampling installation . 187.4 Versatility of sampling system 187.5 Primary samplers 187.5.1 Location 187.5.2 Types of primary sampler . 187.5.3 General design criteria for primary cutters .197.5.4 Cutter aperture of primary sampler 237.5.5 Cutter s

16、peed of primary sampler 23 ISO 2017 All rights reserved iiiContents PageBS ISO 3082:2017ISO 3082:2017(E)7.6 Secondary and subsequent samplers . 247.7 Online sample preparation 247.7.1 Arrangement for sample preparation.247.7.2 Crushers . 247.7.3 Dividers . 247.7.4 Dryers . 257.8 Checking precision a

17、nd bias . 257.9 Cleaning and maintenance . 257.10 Example of a flowsheet . 288 Sampling from stationary situations 308.1 General 308.2 Sampling from trucks and wagons . 308.2.1 General . 308.2.2 Sampling devices 308.2.3 Number of primary increments . 318.2.4 Method of sampling 318.3 Sampling from sh

18、ips, stockpiles and bunkers .319 Stopped-belt reference sampling .3110 Sample preparation 3210.1 Fundamentals . 3210.1.1 General. 3210.1.2 Drying . 3310.1.3 Crushing and grinding3310.1.4 Mixing . 3310.1.5 Division . 3410.1.6 Mass of divided sample . 3510.1.7 Split use and multiple use of sample .371

19、0.2 Method of constituting partial samples or a gross sample 3910.2.1 General. 3910.2.2 Method of constitution for mass-basis sampling 3910.2.3 Method of constitution for time-basis sampling .3910.2.4 Special procedure for moisture content .4010.3 Mechanical methods of division 4010.3.1 Mechanical i

20、ncrement division. 4010.3.2 Other mechanical division methods 4110.4 Manual methods of division . 4210.4.1 General. 4210.4.2 Manual increment-division method .4210.4.3 Manual strip-division method . 4410.4.4 Manual riffle-division method . 4610.5 Preparation of test samples for chemical analysis 471

21、0.5.1 Mass and particle size 4710.5.2 Preparation to 250 m nominal top size5010.5.3 Final preparation 5010.5.4 Grinding to 100 m or 160 m nominal top size 5010.5.5 Distribution of samples for chemical analysis.5110.6 Preparation of test samples for moisture determination .5110.7 Preparation of test

22、samples for size determination 5210.8 Preparation of test samples for physical testing .5210.8.1 Selection of sample preparation procedure 5210.8.2 Extraction of test samples . 5410.8.3 Reserve samples 5911 Packing and marking of samples 61Annex A (informative) Inspection of mechanical sampling syst

23、ems62Annex B (normative) Formulae for number of increments .69iv ISO 2017 All rights reservedBS ISO 3082:2017ISO 3082:2017(E)7.6 Secondary and subsequent samplers . 247.7 Online sample preparation 247.7.1 Arrangement for sample preparation.247.7.2 Crushers . 247.7.3 Dividers . 247.7.4 Dryers . 257.8

24、 Checking precision and bias . 257.9 Cleaning and maintenance . 257.10 Example of a flowsheet . 288 Sampling from stationary situations 308.1 General 308.2 Sampling from trucks and wagons . 308.2.1 General . 308.2.2 Sampling devices 308.2.3 Number of primary increments . 318.2.4 Method of sampling 3

25、18.3 Sampling from ships, stockpiles and bunkers .319 Stopped-belt reference sampling .3110 Sample preparation 3210.1 Fundamentals . 3210.1.1 General. 3210.1.2 Drying . 3310.1.3 Crushing and grinding3310.1.4 Mixing . 3310.1.5 Division . 3410.1.6 Mass of divided sample . 3510.1.7 Split use and multip

26、le use of sample .3710.2 Method of constituting partial samples or a gross sample 3910.2.1 General. 3910.2.2 Method of constitution for mass-basis sampling 3910.2.3 Method of constitution for time-basis sampling .3910.2.4 Special procedure for moisture content .4010.3 Mechanical methods of division

27、4010.3.1 Mechanical increment division. 4010.3.2 Other mechanical division methods 4110.4 Manual methods of division . 4210.4.1 General. 4210.4.2 Manual increment-division method .4210.4.3 Manual strip-division method . 4410.4.4 Manual riffle-division method . 4610.5 Preparation of test samples for

28、chemical analysis 4710.5.1 Mass and particle size 4710.5.2 Preparation to 250 m nominal top size5010.5.3 Final preparation 5010.5.4 Grinding to 100 m or 160 m nominal top size 5010.5.5 Distribution of samples for chemical analysis.5110.6 Preparation of test samples for moisture determination .5110.7

29、 Preparation of test samples for size determination 5210.8 Preparation of test samples for physical testing .5210.8.1 Selection of sample preparation procedure 5210.8.2 Extraction of test samples . 5410.8.3 Reserve samples 5911 Packing and marking of samples 61Annex A (informative) Inspection of mec

30、hanical sampling systems62Annex B (normative) Formulae for number of increments .69iv ISO 2017 All rights reserved ISO 3082:2017(E)Annex C (informative) Alternative methods of taking the reference sample 72Annex D (normative) Procedure for determining the minimum mass of divided gross sample for siz

31、e determination using other mechanical division methods 78Annex E (normative) Riffle dividers .81Bibliography .83 ISO 2017 All rights reserved vBS ISO 3082:2017ISO 3082:2017(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO

32、 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 represented on that committee. International organizations, gover

33、nmental 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 used to develop this document and those intended for its further mainten

34、ance 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 rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).Atte

35、ntion 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 identified during the development of the document will be in the Introductio

36、n 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 the voluntary nature of standards, the meaning of ISO specific te

37、rms 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/ foreword .html.This document was prepared by Technical Committee ISO/

38、TC 102, Iron ore and direct reduced iron, Subcommittee SC 1, Sampling.This fifth edition cancels and replaces the fourth edition (ISO 3082:2009), which has been technically revised. It also incorporates the Technical Corrigendum ISO 3082:2009/Cor.1:2009. The main changes compared to the previous edi

39、tion are as follows: expansion of the definition of test sample; insertion of a new paragraph in 4.1 indicating that sampling from the top of a moving conveyor belt using cross-belt (hammer) samplers is not permitted; deletion of reference to increasing the cutter aperture above three times nominal

40、top size to avoid bridging of the cutter lips for wet sticky ore at the end of 5.1.4.2; expression of bulk density in kg/m3in 5.1.4.4 and corresponding amendment of Formula (3); insertion of an explanation in the first paragraph of 5.2 that better precision means a lower value of SPM; inclusion of a

41、n extra column in Table 1 and extra rows in Tables 3 and 5 for mass of lot over 340 000 tonnes and updating of the overall precision values for phosphorus content in Table 1 based on international data collected on precisions achieved in practice; updating of the sampling precision values for phosph

42、orus content in Table 3 based on international data collected on precisions achieved in practice as well as minor adjustments to the sizing precisions for sized ore and sinter feed; changing of “there will not be any oversize material remaining” in 7.7.2 to “no more than 5 % by mass oversize materia

43、l is retained on the relevant sieve”; changing of “sample division” to “division” throughout 10.1.5;vi ISO 2017 All rights reservedBS ISO 3082:2017ISO 3082:2017(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodie

44、s). 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 represented on that committee. International organizations, governmental and n

45、on-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 used to develop this document and those intended for its further maintenance are desc

46、ribed 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 rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).Attention is draw

47、n 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 identified during the development of the document will be in the Introduction and/or on t

48、he 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 the voluntary nature of standards, the meaning of ISO specific terms and expre

49、ssions 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/ foreword .html.This document was prepared by Technical Committee ISO/TC 102, Iron ore and direct reduced iron, Subcommittee SC 1, Sampling.This fifth edition cancels and replaces the fourth edition (ISO 3082:2009), which has been technically revised. It also incorporates the Technical Corrigendum ISO