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1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS 1016-102:2000 ISO 579:
2、1999 ICS 75.160.10 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Methods for analysis and testing of coal and coke Part 102: Determination of total moisture of coke Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 08:08:44 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Thi
3、s British Standard, having been prepared under the direction of the Sector Committee for Materials and Chemicals, was published under the authority of the Standards Committee and comes into effect on 15 March 2000 BSI 03-2000 ISBN 0 580 34514 9 BS 1016-102:2000 Amendments issued since publication Am
4、d. No.DateComments National foreword This British Standard reproduces verbatim ISO 579:1999 and implements it as the UK national standard. It supersedes BS 1016-2:1973 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee SFI/3, Analysis and testing of coal
5、 and coke, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and
6、promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under t
7、he section entitled International Standards Correspondence Index, or by using the Find facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct applicati
8、on. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the ISO title page, pages ii and iii, a blank page, pages 1 to 3 and a back cover. The BSI copyright notice displayed in th
9、is document indicates when the document was last issued. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 08:08:44 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Reference number ISO 579:1999(E) INTERNATIONAL STANDARD ISO 579 Third edition 1999-12-15 Coke Determination of total moisture Coke Dterm
10、ination de lhumidit totale BS 1016-102:2000 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 08:08:44 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii? BS 1016-102:2000 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 08:08:44 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ?iii Foreword ISO (th
11、e International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committ
12、ee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechn
13、ical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval
14、 by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this International Standard may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. InternationalStandardISO 579wasp
15、reparedbyTechnicalCommitteeISO/TC 27,Solidmineralfuels, Subcommittee SC 5,Methods of analysis. This third edition cancels and replaces the second edition (ISO 579:1981), which has been technically revised. BS 1016-102:2000 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 08:08:44 GMT+00:00 200
16、6, Uncontrolled Copy, (c) BSI BS 1016-102:2000 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 08:08:44 GMT+00:00 2006, Uncontrolled Copy, (c) BSI INTERNATIONAL STANDADR?ISO 975:(9991)E ?1 Coke Determination of total moisture 1?Scope This International Standard specifies a method for determin
17、ing the total moisture of coke. It can be used for the determination of moisture of blast-furnace coke, foundry coke and other high-temperature carbonization products. 2?Normative references The following normative documents contain provisions which, through reference in this text, constitute provis
18、ions of this International Standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the
19、normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain registers of currently valid International Standards. ISO 9411-2,Solid mineral fuels Mechanical sampling from moving streams Part 2: Coke. IS
20、O 13909-6:1),Hard coal and coke Mechanical sampling Part 6: Coke Preparation of test samples. 3Principle A sample is heated in air at 120 C to 200 C and maintained at this temperature until constant in mass. The moisture percentage is calculated from the loss in mass of the sample. Coke is not liabl
21、e to oxidation under the specified conditions. 4?Apparatus 4.1?Drying oven, capable of maintaining a substantially uniform temperature zone at 120 C to 200 C and in which the rate of atmospheric change is sufficiently rapid for the test. 4.2?Tray, approximately 0,1 m2in area and 25 mm deep, made of
22、non-corrodible material such as stainless steel, tinned steel or aluminium. 4.3?Balance, capable of weighing to the nearest 1 g. 5Sample The sample for the determination of total moisture, taken in accordance with ISO 13909-6 and ISO 9411-2 shall be kept in a sealed, airtight container. The whole of
23、 the sample is crushed to a nominal top size of 16 mm using a jaw crusher. From the crushed material, the laboratory sample is obtained by dividing. 1)To be published. BS 1016-102:2000 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 08:08:44 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 2? It is
24、 essential that precautions be taken to prevent loss of moisture during these operations, by undue ventilation or loss of sample as dust. Samples which are visibly wet, and those for which the moisture is expected to exceed 15 %, are partially dried before reduction and division. This air-drying pro
25、cedure is described in ISO 13909-6. The air drying of visibly wet samples shall be carried out in the laboratory in which the determination of residual moisture is carried out. 6?Procedure Weigh the clean, dry, empty tray (4.2) to the nearest 1 g. Add about 1 kg of the laboratory sample, spread the
26、coke evenly and reweigh to the nearest 1 g. Place the charged tray in the oven (4.1) at a temperature of 120 C to 200 C. After the drying period is complete, remove the tray with the dried sample from the oven. Reweigh the tray immediately to avoid absorption of moisture during cooling. If there is
27、any doubt that drying is not complete, reheat at 120 C to 200 C for further periods of heating until any change in mass does not exceed 0,1 %. For a particular oven, the times required to ensure constancy in mass shall be verified by experiments. NOTE?If appropriate, the drying can be done at a lowe
28、r temperature, e.g. 105 C to 110 C as for hard coal. 7?Expression of results 7.1? Sample as analysed (see clause 6) The total moisture, MT, of the coke as analysed, expressed as a percentage by mass, is given by the equation: M mmmm mm T ? ? ? ? 1232 12 100 bg bg bg where m1is the mass, in grams, of
29、 the tray plus laboratory sample; m2is the mass, in grams, of the dry, empty tray; m3is the mass, in grams, of the tray plus sample after heating. Report the result, as the mean of duplicate determinations, to the nearest 0,1 %. 7.2? Visibly wet sample (see clause 5) For visibly wet samples, the tot
30、al moisture MT, expressed as a percentage by mass, is given by the equation: MXM X T ? ? ? F H G I K J1 100 where X?is the air-drying loss, as a percentage by mass, of the original sample; M?is the residual moisture, as a percentage by mass, determined on the air-dried laboratory sample. BS 1016-102
31、:2000 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 08:08:44 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ?3 8?Precision 8.1? Repeatability limit The results of duplicate determinations (carried out over a short period of time, but not simultaneously) in the same laboratory, by the same opera
32、tor, with the same apparatus on two representative portions taken from the same analysis sample, shall not differ by more than the value shown in Table 1. 8.2? Reproducibility critical difference The means of the results of duplicate determinations performed in each of two laboratories, on represent
33、ative portions, taken from the same sample after dividing and crushing, shall not differ by more than the value shown in Table 1. Tableau 1 Precision of total moisture Maximum acceptable differences between results Repeatability limit Reproducibility critical difference 0,5 % absolute?0,7 % absolute
34、 9?Test report The test report shall include the following information: a)?a reference to this International Standard; b)?the identification of the sample; c)?the results of the determination; d)?any unusual features noted during the determination; e)?any operation not included in this International
35、 Standard, or regarded as optional; f)?the date of the determination. BS 1016-102:2000 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 08:08:44 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 1016-102:2000 ISO 579:1999 BSI 389 Chiswick High Road London W4 4AL | | | | | | | | | | | | | | | | | |
36、 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BSI British Standards Institution BSI is the independent national body responsibl
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