BS 1016-108 3-1995 Methods for analysis and testing of coal and coke - Tests special to coke - Determination of bulk density (small container)《煤和焦炭试验和分析方法 第108部分 焦炭试验 第3节 用小型容器测定容.pdf

1、BRITISH STANDARD BS 1016-108.3: 1995 ISO 567:1995 Methods for Analysis and testing of coal and coke Part 108: Tests special to coke Section 108.3 Determination of bulk density (small container) ICS 75.160.10BS1016-108.3:1995 This British Standard, having been prepared under the directionof the Secto

2、r Board for Materials and Chemicals, was published under the authority of the Standards Board and comes into effect on 15 October 1995 BSI 07-1999 First published August 1991 Second edition October 1995 The following BSI references relate to the work on this standard: Committee reference SFI/3 Draft

3、 for comment 94/501399 DC ISBN 0 580 24922 0 Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee SFI/3, Analysis and testing of coal and coke, upon which the following bodies were represented: British Cement Association Briti

4、sh Coal Corporation British Gas plc British Steel Industry Electricity Association GAMBICA (BEAMA Ltd.) Power Generation Contractors Association (PGCA) (BEAMA Ltd.) Amendments issued since publication Amd. No. Date CommentsBS1016-108.3:1995 BSI 07-1999 i Contents Page Committees responsible Inside f

5、ront cover National foreword ii Introduction 1 1 Scope 1 2 Normative references 1 3 Definition 1 4 Principle 1 5 Apparatus 1 6 Test sample 1 7 Procedure 1 8 Expression of results 1 9 Precision 2 10 Test report 2 List of references Inside back coverBS1016-108.3:1995 ii BSI 07-1999 National foreword T

6、his British Standard has been prepared by Technical Committee SFI/3 and is identical with ISO 567:1995 Coke Determination of bulk density in a small container, published by the International Organization for Standardization (ISO) and in the preparation of which the UnitedKingdom played a full part.

7、This British Standard is a revision of BS1016-108.3:1991 which is withdrawn. Main changes in this edition are in the definition of bulk density and expression of results. BS 1016-108.3 is part of a rationalized and restructured BS1016. The Parts numbered from 1 to 21 are gradually being withdrawn an

8、d replaced by Parts in the new series. The full list of Parts in the new series, together with corresponding numbering of the old series and related ISO standards is given in BS1016 Methods for analysis and testing of coal and coke Part 100:1994 General introduction and methods for reporting results

9、. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Cross-references International standard

10、 Corresponding British Standard BS 1016 Methods for analysis and testing of coal andcoke ISO 579:1981 Part 2:1973 Total moisture of coke (Technically equivalent) ISO 1013:1995 Part 108 Tests special to coke Section 108.4:1991 Determination of bulk density (largecontainer) (Technically equivalent) Su

11、mmary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages1 and 2, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside

12、front cover.BS1016-108.3:1995 BSI 07-1999 1 Introduction The bulk density of coke depends upon its physical characteristics,e.g.apparent relative density, shape and size of the coke particles, and upon the dimensions of the container. The container specified in this International Standard has a capa

13、city of 0,2m 3 . The determination of bulk density of coke in a large container is described in ISO1013. 1 Scope This International Standard specifies a method for the determination of the bulk density of coke in a cubical container of capacity 0,2m 3 . It is applicable to coke with a nominal top si

14、ze not greater than 125mm. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties

15、to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO 579:1981, Coke Determination of total mois

16、ture content. ISO 1013:1995, Coke Determination of bulk density in a large container. 3 Definition For the purposes of this International Standard, the following definition applies. 3.1 bulk density the mass of a portion of a solid mineral fuel divided by the volume of the container which is filled

17、by that portion under specified conditions 4 Principle A weighed container of known volume is filled with coke and the increase in mass is determined. 5 Apparatus 5.1 Cubical container, of capacity 0,200m 3and internal dimension 585mm, with a smooth inner surface, rigidly constructed and fitted with

18、 handles. 5.2 Weighing machine, preferably of the platform type, of maximum capacity 300kg and sufficiently accurate that the weighing error does not exceed0,1%of the maximum load or250g, whichever is the smaller. 6 Test sample Take a sample (for physical testing) in accordance with ISO 2309:1980, C

19、oke Sampling 1) . 7 Procedure Place the container (5.1) on the weighing machine (5.2) and record its mass. Charge the coke slowly into the container until pieces of coke project above the top of the container across the whole surface. The height of drop of the coke shall not exceed 250mm. Slide a st

20、raightedge across the top of the container and remove any pieces of coke which obstruct its passage. Weigh the charged container. Carry out a duplicate determination by repeating the procedure using a second portion of the test sample. 8 Expression of results The bulk density in a small container (

21、s ) of the coke, in kilograms per cubic metre, on a dry basis, is given by the equation: where Calculate the mean of the two determinations and report the result to three significant figures. For calculation of the result on an “as sampled” basis, omit the correction factor for moisture, i.e. “(100

22、M)/100”, in the equation. 1) In due course, ISO 2309 will be replaced by ISO13909-6, Hard coal and coke Sampling Part 6: Coke Preparation of test samples. m 1 is the mass, in kilograms, of the empty container; m 2 is the mass, in kilograms, of the container plus coke; V is the capacity, in cubic met

23、res, of the container; M is the total moisture content of the coke, expressed as a percentage by mass, determined in accordance with ISO579. S m 2 m 1 V - 100M 100 - =BS1016-108.3:1995 2 BSI 07-1999 9 Precision 9.1 Repeatability limit The results of duplicate determinations, carried out in the same

24、laboratory by the same operator with the same apparatus on representative portions taken from the same test sample, should not differ by more than 30kg/m 3 . 9.2 Reproducibility No value for reproducibility can be quoted for determinations carried out in different laboratories because the transport

25、of coke samples involves the risk of breakage and thus alteration of the size distribution and the bulk density. 10 Test report The test report shall include the following: a) the method used by reference to this International Standard; b) a complete identification of the sample; c) the date of the

26、test; d) the results expressed in accordance with clause8; e) any unusual features noted during the determination; f) any operation not included in this International Standard, or regarded as optional.BS1016-108.3:1995 BSI 07-1999 List of references See national foreword.BS 1016-108.3: 1995 ISO 567:

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