ISO-1170-1977.pdf
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1、INTERNATIONAL STANDARD 1170 INTERNATIONAL ORGANIZATION FOR STANDARDIZATIONMEEYHAPOHA24 OPrAHCI3AUMR FlO CTAHnAPTHSAUUH.ORGANISATION INTERNATIONALE DE NORMALISATION Coal and coke - Calculation of analyses to different bases Charbon et coke - Calculs pour /es analyses par rapport a diffgrentes bases F
2、irst edition - 1977-03-l 5 UDC (662.66 + 662.749.2) : 543 Ref. No. IS0 1170-1977 (E) Descriptors : coal, coke, chemical analysis, determination of content, carbon, hydrogen, nitrogen, sulphur, oxygen, chlorine, volatility. Price based on 4 pages Copyright International Organization for Standardizati
3、on Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/28/2007 00:08:17 MDTNo reproduction or networking permitted without license from IHS -,-,- FOREWORD IS0 (the international Organization for Standardization) is a worldwide federation of nation
4、al standards 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 orga
5、nizations, 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. Prior to 1972, the
6、results of the work of the technical committees were published as IS0 Recommendations; these documents are in the process of being transformed into International Standards. As part of this process, Technical Committee ISO/TC 27, So/id mineral fuels, has reviewed IS0 Recommendation R 1170-1970 and fo
7、und it technically suitable for transformation. International Standard IS0 1170 therefore replaces IS0 Recommendation R 1170-1970, to which it is technically identical. IS0 Recommendation R 1170 had been approved by the member bodies of the following countries : Australia Iran Belgium Israel Canada
8、Netherlands Czechoslovakia New Zealand Denmark Peru Egypt, Arab Rep. of Poland France Portugal Germany Romania India South Africa, Rep. of Spain Sweden Switzerland Turkey United Kingdom U.S.A. Yugoslavia No member body had expressed disapproval of the Recommendation. The member body of the following
9、 country disapproved the transformation of the Recommendation into an International Standard : Czechoslovakia 0 International Organization for Standardization, 1977 l Printed in Switzerland Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA
10、Technical Standards 1/9972545001 Not for Resale, 04/28/2007 00:08:17 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD IS0 1170-1977 (E) Coal and coke - Calculation of analyses to different bases 1 SCOPE AND FIELD OF APPLICATION This International Stand
11、ard gives formulae which allow analytical data relating to coal and coke to be expressed on the various different bases in common use. Consideration is given to corrections that may be applied to certain determined values for coal prior to their calculation to other bases. 2 REFERENCES IS0 157, Hard
12、 coal - Determination of forms of sulphur. IS0 334, Coal and coke - Determination of total sulphur - Eschka method. IS0 351, Coal and coke - Determination of total sulphur - High temperature combustion method. IS0 352, Coal and coke - Determination of chlorine - High temperature combustion method. I
13、S0 562, Hard coal and coke - Determination of the volatile matter. IS0 587, Coal and coke - Determination of chlorine using Eschka mixture. IS0 602, Coal - Determination of mineral matter. IS0 609, Coal and coke - Determination of carbon and hydrogen - High temperature combustion method. IS0 625, Co
14、al and coke - Determination of carbon and hydrogen - L iebig method. IS0 925, Hard coal - Determination of carbon dioxide content - Gravimetric method. IS0 1928, Solid mineral fuels - Determination of gross calorific value by the calorimetric bomb method, and calculation of net calorific value. IS0
15、1994, Hard coal - Determination of oxygen content. 3 PRINCIPLE In order to convert an analytical result expressed on one basis to another basis, it is multiplied by the appropriate formula (see table) after insertion of the requisite numerical values. 4 CALCULATIONS FOR COAL ANALYSES 4.1 Introductio
16、n In International Standards covering the analysis of coal, it is generally specified that the determination shall be carried out on the air-dried analysis sample. However, in making use of these analyses, it is sometimes necessary to express the results on some other basis. The bases in common use
17、are “air-dried”, “as received”, “dry”, “dry, ash free”, “dry, mineral matter free”. Any analytical value on a particular basis may be converted to any other basis by multiplying it by the appropriate formula given in the table, after insertion of the numerical values for the symbols. However, in som
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