ISO-1988-1975.pdf
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1、1788-75 Lt851703 0008473 r u - i INTERNATIONAL STANDARD is0 1988-1975 (EVAMENDMENT Published 1975-05-01 INTERNATIONAL ORGANIZATION FOR STANDARDIZATION +EliiYHAPOJlHAX OPrAHHlAUHX il0 CTAHiIAPTH3AUHH .ORGANISATION INTERNATIONALE DE NORMALISATION Hard coal - Sampling AMENDMENT Foreword (inside front c
2、over) The IS0 Member Body for France has now withdrawn its disapproval of this international Standard. France should therefore be included in the list of countries whose Member Bodies have approved the document. , - . Copyright International Organization for Standardization Provided by IHS under lic
3、ense with ISO Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 04/04/2007 00:50:10 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL ORGANIZATION FOR STANDARDIZATION .MUKAYHAPOAHAJl OPTAHH3AIJMR II0 CTAHnAPTC13AWM .ORGANISATION INTERNATIONALE
4、 DE NORMALISATION Hard coal - Sampling Charbons et lignites durs - chantillonnage First edition - 1975-03-01 UDC 662.66 : 620.11 Ref. No. IS0 1988-1975 (E) Descriptors : coal, lignite, sampling. Price based on 90 pages - - Copyright International Organization for Standardization Provided by IHS unde
5、r license with ISO Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 04/04/2007 00:50:10 MDTNo reproduction or networking permitted without license from IHS -,-,- L788-75 FOREWO RD IS0 (the International Organization for Standardization) is a worldwide federation of national stand
6、ards institutes (IS0 Member Bodies). The work of developing International Standards is carried out through IS0 Technical Committees. Every Member Body interested in a subject for which a Technical Committee has been set up has the right to be represented on that Committee. International organization
7、s, governmental and non-governmental, in liaison with ISO, also take part in the work. Draft International Standards adopted by the Technical Committees are circulated to the Member Bodies for approval before their acceptance as International Standards by the IS0 Council. International Standard IS0
8、1988 was drawn up by Technical Committee ISO/TC 27, Solid mineral fuels, and circulated to the Member Bodies in June 1971. It has been approved by the Member Bodies of the following countries : Austria India Switzerland Belgium Ireland Turkey Canada Netherlands United Kingdom Czech os1 ova ki a New
9、Zealand U.S.A. Den mark Portugal Yugoslavia Egypt, Arab Rep. of Romania Germany Sweden I The Member Bodies of the following countries expressed disapproval of the document on technical grounds : France South Africa, Rep. of O International Organization for Standardization, 1975 0 Printed in Switzerl
10、and Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 04/04/2007 00:50:10 MDTNo reproduction or networking permitted without license from IHS -,-,- 4853903 0008477 5 r 3988-75 CONTENTS
11、Page 1 Scope and field of application . . . . . . . . . . . . . . . 2 Introduction . . . . . . . . . . . . . . . . . . . . . 3 Fundamentals of sampling . . . . . . . . . . . . . . . . . 4 Sampling from a stream of coal . . . . . . . . . . . . . . . 5 Sampling from wagons . . . . . . . . . . . . . .
12、. . . . 6 Sampling from ships . . . . . . . . . . . . . . . . . . . 7 Sampling from stockpiles . . . . . . . . . . . . . . . . . Sample preparation for determination of total moisture . . . . . . . 9 Sample preparation for general analysis . . . . . . . . . . . . 8 Annexes A Sampling equipment . . .
13、 . . . . . . . . . . . . . . . Example of instructions to sampling operators . . . . . . . . . . Methods of checking precision by means of replicate sampling . . . . . D Methods of checkingsamplingpreparation errors . . . . . . . . . E Method of testing for bias . . . . . . . . . . . . . . . . . F T
14、heory of calculation of number of increments from experimental data . . . . . . . . . . . . . . . . . . . . . . . . . G Theory of replicate sampling . . . . . . . . . . . . . . . . H Theory of checking sample preparation errors . . . . . . . . . . B C 1 1 5 9 12 14 17 18 21 30 60 64 71 78 80 83 89 C
15、opyright International Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 04/04/2007 00:50:10 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD IS0 1988-1 975 (E)/
16、ERRATA 1988-75 4451903 004476 3p Published 1975-03-01 INTERNATIONAL ORGANIZATION FOR STANDARDIZATION *MEXnvHAFWnHA OPTAHWSAUW il0 CTAHjlAPTW3AULH .ORGANISATION INTERNATIONALE DE NORMALISA Hard coal - Sampling ERRATA Foreword (Inside front cover). The IS0 Member Body for the Republic of South Africa
17、has now withdrawn its disapproval of this International Standard. The Republic of South Africa should therefore be included in the list of countries whose Member Bodies have approved the document. Page 5. Sub-clause 3.1.1, 8th and 10th lines : “time“ should read “true“. Page 8. Sub-clause 3.5.1, 5th
18、 paragraph, last line : delete “It“. Page 27. Sub-clause 9.1.1,3rd and 4th lines : delete : “in the second stage it is reduced from that size to an intermediate size;“. Page 37. Sub-clause A.8.4, last paragraph : “4 to 5 ml“ should read “4 to 5 m“. Page 78. Sub-clause E.8.1, 6th line : “p should rea
19、d “A“. Page 80. Sub-clause F.3.1, 2nd paragraph : the second formula should read as follows : Page 82. Clause F.4, 10th line : “p“ should read “P“. Equation 12 should read as follows : Page 84. Sub-clause G.2.3 : equation 13 should read as follows : u= Waf or W= ala, . * (12) . . . (13) Copyright In
20、ternational Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 04/04/2007 00:50:10 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD IS0 1988-1975 (E) Hard coal -
21、Sampling 1 SCOPE AND FIELD OF APPLICATION This International Standard specifies methods of sampling hard coal, for both routine and special purposes, to provide samples for general analysis and for the determination of total moisture. It also outlines the principles to be taken into consideration wh
22、en taking the sample and preparing it for analysis. The principles of this International Standard may also be used for taking samples for the determination of physical characteristics, such as particle size and density, and the determination of rheological properties. For physical characteristics it
23、 may be necessary to collect a greater mass of gross sample than the minimum specified, either by increasing the mass of each increment or by taking more increments, and for rheological properties the top size of the prepared laboratory sample may have to be different from that of either the general
24、 analysis sample or the total moisture sample (see 2.9). NOTES 1 The term “hard coal“ refers to all coals so defined by the ECE classification (see ISO/R 1213). It may include certain coals known in the French classification as “hard lignites“. 2 Attention is drawn to ISO/R 1213, Vocabulary of terms
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