1、BRITISH STANDARD BS1016-108.4: 1995 ISO1013:1995 Methods for Analysis and testing of coal and coke Part108: Tests special to coke Section108.4 Determination of bulk density (large container) ICS75.160.10BS1016-108.4:1995 This British Standard, having been prepared under the directionof the Sector Bo
2、ard forMaterials and Chemicals, waspublished under the authorityof the Standards Boardand comes into effect on 15October1995 BSI08-1999 First published August1991 Second edition October1995 The following BSI references relate to the work on this standard: Committee reference SFI/3 Draft for comment9
3、4/501397DC ISBN 0 580 24923 9 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 British Coal Corpora
4、tion 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 CommentsBS1016-108.4:1995 BSI 08-1999 i Contents Page Committees responsible Inside front cover Nati
5、onal foreword ii Introduction 1 1 Scope 1 2 Normative references 1 3 Definition 1 4 Principle 1 5 Apparatus 1 6 Procedure 1 7 Expression of results 1 8 Precision 1 9 Test report 2 List of references Inside back coverBS1016-108.4:1995 ii BSI 08-1999 National foreword This British Standard has been pr
6、epared by Technical Committee SFI/3 and is identical with ISO1013:1995, Coke Determination of bulk density in a large container, published by the International Organization for Standardization (ISO) and in the preparation of which the United Kingdom played a full part. This British Standard is a rev
7、ision of BS1016-108.4:1991 which is withdrawn. Main changes in this edition are in the definition of bulk density and expression of results. BS1016-108.4 is part of a rationalized and restructured BS1016. The Parts numbered from1 to21 are gradually being withdrawn and replaced by Parts in the new se
8、ries. 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 Part100:1994 General introduction and methods for reporting results. A British Standard does not purp
9、ort 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 Corresponding British Standard BS
10、1016 Methods for analysis and testing of coal and coke ISO567:1995 Part108 Tests special to coke Section108.3:1995 Determination of bulk density (Identical) ISO579:1981 Part2:1973 Total moisture of coke (Technically equivalent) Summary of pages This document comprises a front cover, an inside front
11、cover, pagesi andii, 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 front cover.BS1016-108.4:1995 BSI 08-1999 1 Introduction The bulk densit
12、y 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. If the container is sufficiently large, its actual dimensions will have a negligible effect on the value obtained in a determination of
13、bulk density. The method described in this International Standard is based on the use of any suitable large container, possibly that in which the coke is delivered, such as a wagon or skip. The determination of bulk density of coke in a small container (of specified dimensions) is described in ISO56
14、7. 1 Scope This International Standard specifies a method for the determination of the bulk density of coke in a large container such as a wagon or skip. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this Internation
15、al Standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Membe
16、rs of IEC and ISO maintain registers of currently valid International Standards. ISO567:1995, Coke Determination of bulk density in a small container. ISO579:1981, Coke Determination of total moisture content. 3 Definition For the purposes of this International Standard, the following definition app
17、lies. 3.1 bulk density the mass of a portion of a solid mineral fuel divided by the volume of the container which is filled 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 Container
18、, such as a wagon or skip, capable of holding at least3t of the coke. 5.2 Weighing machine, capable of weighing the container and its contents to an accuracy of0,2%. 6 Procedure Weigh the empty container(5.1) on the weighing machine(5.2). Measure the internal dimensions of the container to the neare
19、st1cm and calculate its capacity. NOTE 1If the container is already fully charged, it should be weighed with the coke first, then be weighed empty and then be measured. With the container on a level surface, carefully charge the coke into it until pieces of coke project above the top of the containe
20、r across the whole surface. Slide a straightedge across the top of the container and remove any pieces of coke which obstruct its passage. Weigh the charged container. 7 Expression of results The bulk density in a large container ( l ) of the coke, in kilograms per cubic metre, on a dry basis, is gi
21、ven by the equation: 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.“(100M)/100”, in the equation. 8 Precision 8.1 Repeatability limit The results of two determinations, carried out at different tim
22、es by the same operator with the same apparatus on samples from the same lot of coke, should not differ by more than10kg/m 3 . 8.2 Reproducibility No value for reproducibility can be quoted for determinations carried out on different sites because the transport of coke samples involves the risk of b
23、reakage and thus alteration of the size distribution and the bulk density. where 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 metres, of the container; M is the total moisture content of the coke, expres
24、sed as a percentage by mass, determined in accordance with ISO579. l m 2 m 1 V - 100M 100 - =BS1016-108.4:1995 2 BSI 08-1999 9 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 d
25、ate of the test; d) the results expressed in accordance with clause7; e) any unusual features noted during the determination; f) any operation not included in this International Standard, or regarded as optional.BS1016-108.4:1995 BSI 08-1999 List of references See national foreword.BS1016-108.4: 199
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