BS-6043-1.3-1983 ISO-5940-1981.pdf
《BS-6043-1.3-1983 ISO-5940-1981.pdf》由会员分享,可在线阅读,更多相关《BS-6043-1.3-1983 ISO-5940-1981.pdf(14页珍藏版)》请在三一文库上搜索。
1、BRITISH STANDARD BS 6043-1.3: 1983 ISO 5940:1981 Methods of sampling and test for Carbonaceous materials used in aluminium manufacture Part 1: Electrode pitch Section 1.3 Determination of softening point (ring and ball method) ISO title: Carbonaceous materials for the production of aluminium Pitch f
2、or electrodes Determination of softening point by the ring and ball method UDC 665.775:669.713.7:536.421.2 Licensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 14:02:46 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6043-1.3:1983 This British Standard, having been prepared under the direction of th
3、e Chemicals Standards Committee, was published under the authority of the Board of BSI and comes into effect on 31 May 1983 BSI 10-1999 The following BSI references relate to the work on this standard: Committee reference CIC/24 Draft for comment 78/56456 DC ISBN 0 580 11909 2 Cooperating organizati
4、ons The Chemicals Standards Committee, under whose direction this British Standard was prepared, consists of representatives from the following: Association of Fatty Acid Distillers British Tar Industry Association* Chemical Industries Association Consumer Standards Advisory Committee of BSI Departm
5、ent of Health and Social Security Department of Industry (Laboratory of the Government Chemist) Fertiliser Manufacturers Association Ltd. Ministry of Agriculture, Fisheries and Food Ministry of Defence National Sulphuric Acid Association Paintmakers Association of Great Britain Ltd. Royal Institute
6、of Public Health and Hygiene Royal Society of Chemistry Soap and Detergent Industry Association Standardization of Tar Products Tests Committee* The organizations marked with an asterisk in the above list, together with the following, were directly represented on the Technical Committee entrusted wi
7、th the preparation of this British Standard: Aluminium Federation British Ceramic Research Association Institute of Petroleum Amendments issued since publication Amd. No.Date of issueComments Licensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 14:02:46 GMT+00:00 2006, Uncontrolled Copy, (c) BSI B
8、S 6043-1.3:1983 BSI 10-1999i Contents Page Cooperating organizationsInside front cover National forewordii 1Scope and field of application1 2Reference1 3Principle1 4Reagents1 5Apparatus1 6Procedure1 7Expression of results2 8Test report2 Annex A Details of thermometers3 Annex B Melting of pitch sampl
9、es3 Figure 1 Assembled apparatus4 Figure 2 Tapered ring5 Figure 3 Recommended form of ball centring guide5 Figure 4 Support for rings6 Figure 5 Plate for moulding6 Publications referred toInside back cover Licensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 14:02:46 GMT+00:00 2006, Uncontrolled C
10、opy, (c) BSI BS 6043-1.3:1983 ii BSI 10-1999 National foreword This British Standard has been prepared under the direction of the Chemicals Standards Committee to provide methods of sampling and test for carbonaceous materials used in the production of aluminium. The standard will be published in tw
11、o Parts, each Part being divided into Sections. The two Parts are: Part 1: Electrode pitch; Part 2: Electrode coke. Initially, it is proposed that Part 1 will comprise the following Sections: Other international methods of test for electrode pitch are under consideration and, subject to approval by
12、the United Kingdom, will be published as they become available. This Section is identical with ISO 5940:1981 “Carbonaceous materials for the production of aluminium Pitch for electrodes Determination of softening point by the ring and ball method”, published by the International Organization for Sta
13、ndardization (ISO). Terminology and conventions. The text of the International Standard has been approved as suitable for publication as a British Standard without deviation. Some terminology and certain conventions are not identical with those used in British Standards; attention is drawn especiall
14、y to the following. The comma has been used as a decimal marker. In British Standards it is current practice to use a full point on the baseline as the decimal marker. Wherever the words “International Standard” appear, referring to this standard, they should be read as “British Standard”. SectionSu
15、bjectIdentical with 1.1SamplingISO 6257 1.2Water content (Dean and Stark method)ISO 5939 1.3Softening point (ring and ball method)ISO 5940 1.4Content of toluene-insoluble materialISO 6376 1.5Content of quinoline-insoluble materialISO 6791 1.6Coking valueISO . . . .a 1.7DensityISO . . . .a 1.8Ash con
16、tentISO . . . .a 1.9Sulphur contentISO . . . .a a In course of preparation and referred to for information purposes only. Cross-reference International StandardCorresponding British Standard ISO 6257:1980BS 6043 Methods of sampling and test for carbonaceous materials used in aluminium manufacture Pa
17、rt 1 Electrode pitch Section 1.1:1981 Sampling (Identical) Licensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 14:02:46 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6043-1.3:1983 BSI 10-1999iii Additional information. This standard describes methods of test only, and should not be used or quoted
18、 as a specification defining limits of purity. Reference to this Section should state that the method of test used is in accordance with BS 6043-1.3:1983. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their c
19、orrect application. 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, pages i to iv, pages 1 to 6, an inside back cover and a back cover. This standard has been updated (see cop
20、yright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 14:02:46 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iv blank Licensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 1
21、4:02:46 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6043-1.3:1983 BSI 10-19991 1 Scope and field of application This International Standard specifies a method of using the ring-and-ball apparatus for the determination of the softening point (softening temperature) of pitch used in the production o
22、f aluminium. The method is applicable to pitches having softening points equal to or greater than 30 C. 2 Reference ISO 6257, Carbonaceous materials used in the production of aluminium Pitch for electrodes Sampling. 3 Principle Preparation of a disc-shaped test piece by moulding a test portion in a
23、ring, fitting the prepared ring into a heated bath and placing a steel ball on the upper surface of the test piece. Determination of the temperature at which the test piece, on heating at a prescribed rate, softens sufficiently to sag to a specified depth under the mass of the ball. This temperature
24、 corresponds to the softening point (softening temperature). 4 Reagents During the analysis, use only reagents of recognized analytical grade and distilled water, or water of equivalent purity, freshly boiled and cooled. 4.1 Glycerol, for use with pitches having softening points greater than 85 C. 4
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- BS-6043-1.3-1983 ISO-5940-1981 BS 6043 1.3 1983 ISO 5940 1981
链接地址:https://www.31doc.com/p-3772684.html