JIS-M-8702-2002-R2007-ENG.pdf
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1、Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 05/15/2007 23:52:32 MDTNo reproduction or networking permitted without license from IHS -,-,- J IS JAPANESE I N DU STR I AL STANDARD Translated and Publ
2、ished by Japanese Standards Association Iron ores-Sampling and sample preparation proced Ures ICs 73.060.10 Reference number : JIS M 8702 : 2002 (E) PROTECTED BY COPYRIGHT 37 s Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing
3、, Bernie Not for Resale, 05/15/2007 23:52:32 MDTNo reproduction or networking permitted without license from IHS -,-,- M 8702 : 2002 Foreword This translation has been made based on the original Japanese Industrial Standard revised by the Minister of Economy, Trade and Industry through deliberations
4、 at the Japanese Industrial Standards Committee, as the result of proposal for revision of Japanese Industrial Standard submitted by The Japan Iron and Steel Federation (JISF) with the draft being attached, based on the provision of Article 12 Clause 1 of the Industrial Standardization Law applicabl
5、e to the case of revision by the provision of Article 14. Consequently JIS M 8702 : 1996 is revised, also JIS M 8701 : 1996 and JIS M 8703 : 1996 are withdrawn and replaced with JIS M 8702 : 2002. This revision has been made based on IS0 3082 : 2000 Iron ores-Sampling and sample preparation procedur
6、es for the purposes of making easy to compare this Standard with International Standards; to prepare Japanese Industrial Standard conforming with International Standards; and to propose a draft of International Standard which is based on Japanese Industrial Standard. Date of Establishment: 1985-03-0
7、1 Date of Revision: 2002-03-20 Date of Public Notice in Official Gazette: 2002-03-20 Investigated by: Japanese Industrial Standards Committee Standards Board Technical Committee on Iron and Steel JIS M 8702 : 2002, First English edition published in 2002-12 Translated and published by: Japanese Stan
8、dards Association 4-1-24, Akasaka, Minato-ku, Tokyo, 107-8440 JAPAN In the event of any doubts arising as to the contents, the original JIS is to be the final authority. O JSA 2002 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
9、or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. Printed in Japan PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bern
10、ie Not for Resale, 05/15/2007 23:52:32 MDTNo reproduction or networking permitted without license from IHS -,-,- M 8702 : 2002 Contents Introduction . 1 2 3 4 4.1 4.2 4.3 5 5.1 Scope Normative references Terms and definitions . General considerations for sampling and sample preparation . Basic requi
11、rements Establishing a sampling scheme . System verification Fundamentals of sampling and sample preparation Minimization of bias . 5.1.1 5.1.2 5.1.3 5.1.4 5.2 5.3 5.4 5.4.1 5.4.2 5.5 5.5.1 5.5.2 5.5.3 5.5.4 General Minimization of particle size degradation Extraction of increments Increment mass Ov
12、erall precision Quality variation . Sampling precision and number of primary increments Mass basis sampling . Time basis sampling . Precision of sample preparation and overall precision . Preparation and measurement of gross sample . Preparation and measurement of partial samples General Preparation
13、 and measurement of each increment . 6 Methods of sampling . 6.1 Mass basis sampling . 6.1.1 Mass of increment . 1 1 1 2 3 3 4 5 5 5 5 5 6 6 7 9 10 10 11 11 11 12 12 12 13 13 13 PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employe
14、es/1111111001, User=Wing, Bernie Not for Resale, 05/15/2007 23:52:32 MDTNo reproduction or networking permitted without license from IHS -,-,- M 8702 : 2002 6.1.2 Quality variation . 6.1.3 6.1.4 Sampling interval 6.1.5 Methods of taking increments . 6.2 Time basis sampling . 6.2.1 Mass of increment
15、. Number of primary increments . 6.2.2 Quality variation . 6.2.4 Sampling interval Stratified random sampling within fixed mass or time intervals 6.2.3 Number of increments 6.2.5 6.3 6.3.1 General 6.3.2 Fixed mass intervals . 6.3.3 Fixed time intervals Methods of taking increments . 7 Sampling from
16、moving streams 7.1 7.2 7.3 7.4 7.5 7.5.1 7.5.2 7.5.3 7.5.4 7.5.5 7.6 7.7 7.7.1 7.7.2 7.7.3 7.7.4 General Safety of operations Robustness of sampling installation Versatility of sampling system . Primary samplers Location . Types of primary sampler General design criteria for primary cutters . Cutter
17、 aperture of primary sampler Cutter speed of primary sampler Secondary and subsequent samplers . On-line sample preparation . Arrangement for sample preparation . Crushers Dividers . Dryers 13 13 13 14 14 14 14 15 15 15 15 15 16 16 16 16 16 17 17 17 17 18 19 20 20 21 21 21 22 22 24 (ii PROTECTED BY
18、COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 05/15/2007 23:52:32 MDTNo reproduction or networking permitted without license from IHS -,-,- M 8702 : 2002 7.8 Checking precision and bias 25
19、 7.9 Cleaning and maintenance 25 7.10 Example of a flowsheet . 25 8 Sampling from stationary situations . 27 8.1 General 27 8.2 Sampling from wagons . 27 8.2.1 General 27 8.2.2 Sampling devices 27 8.2.3 Number of primary increments . 27 8.2.4 Method of sampling 28 8.3 Sampling from ships, stockpiles
20、 and bunkers 28 9 Stopped-belt reference sampling . 28 10 Sample preparation . 10.1 Fundamentals . 10.1.1 General 10.1.2 Drying 10.1.3 Crushing and grinding 10.1.4 Mixing 10.1.5 Sample division Split use and multiple use of sample 10.1.6 10.2 Method of constituting partial samples or a gross sample
21、10.2.1 General 10.2.2 Method of constitution for mass basis sampling . 10.2.3 Method of constitution for time basis sampling 10.2.4 Special procedure for moisture content . 10.3 Mechanical methods of division 10.3.1 Mechanical increment division 10.3.2 Other mechanical division methods . 10.4 Manual
22、 methods of division . 10.4.1 General 29 29 29 30 30 31 31 32 32 32 32 32 33 33 33 35 37 37 (iii) PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 05/15/2007 23:52:32 MDTNo repro
23、duction or networking permitted without license from IHS -,-,- M 8702 : 2002 10.4.2 Manual increment division 10.4.3 Manual riffle division method . 10.5 10.6 10.7 10.7.1 Mass and particle size 10.7.2 Preparation to -250 pm Preparation of sample for size determination Preparation of sample for moist
24、ure determination . Preparation of test sample for chemical analysis . 10.7.3 Final preparation . 10.7.4 Grinding to -100 pm or -160 C L r n 10.7.5 Distribution of samples for chemical analysis . 10.8 Example of sample preparation process 37 40 42 42 43 43 44 45 45 46 46 11 Packing and marking of sa
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