JIS-G-0320-2004-ENG.pdf
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1、IS JAPANESE INDUSTRIAL STANDARD Translated and Published by Japanese Standards Association Standard test methods for heat analysis of steel products ICs 77.040.30; 77.140.10 Reference number : JIS G 0320 : 2004 (E) PROTECTED BY COPYRIGHT 5s G 0320 : 2004 Foreword This translation has been made based
2、 on the original Japanese Industrial Standard established by the Minister of Economy, Trade and Industry through deliberations at the Japanese Industrial Standards Committee according to the proposal of establishing a Japanese Industrial Standard from The Japan Iron and Steel Federation (JISF), with
3、 a draft of Industrial Standard based on the provision of Article 12 Clause 1 of the Industrial Standardization Law. Attention is drawn to the possibility that some parts of this Standard may conflict with a patent right, application for a patent after opening to the public, utility model right or a
4、pplication for registration of utility model after opening to the public which have technical properties. The relevant Minister and the Japanese Industrial Standards Committee are not responsible for identifying the patent right, application for a patent after opening to the public, utility model ri
5、ght or application for registration of utility model after opening to the public which have the said technical properties. Date of Establishment: 2004-02-20 Date of Public Notice in Official Gazette: 2004-02-20 Investigated by: Japanese Industrial Standards Committee Standards Board Technical Commit
6、tee on Iron and Steel JIS G 0320 : 2004, First English edition published in 2004-05 Translated and published by: Japanese Standards Association 4-1-24, Akasaka, Minato-ku, Tokyo, 107-8440 JAPAN In the event of any doubts arising as to the contents, the original JIS is to be the final authority. O JS
7、A204 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. Printed in Japan PROTECTED BY COPYRIGHT -,-,-
8、 G 0320 : 2004 Contents Page 1 2 3 4 4.1 4.2 5 Scope Normative references Definitions Methods of heat analysis . Case of the chemical compositions specified in the standards for Case of the chemical compositions not specified in the standards for each steel product each steel product General require
9、ments related to analysis Attached Table 1 Normative references . PROTECTED 3Y COPYRIGHT -,-,- JAPANESE INDUSTRIAL STANDARD JIS G 0320 : 2004 Standard test methods for heat analysis of steel products 1 Scope This Japanese Industrial Standard specifies the standard test methods for heat analysis for
10、the determination of chemical composition of steel products and the related general requirements. 2 Normative references The standards listed in Attached Table 1 contain pro- visions which, through reference in this Standard, constitute provisions of this Standard. The most recent editions of the st
11、andards (including amendments) shall be applied. 3 Definitions 1201 and the following definitions apply. a) b) independent methods for analysis For the purposes of this Standard, the definitions given in JIS G heat; analysis The analysis carried out by using the sample taken in the pro- cess in whic
12、h cast steel is poured in a mould from a ladle and solidifies. i) Adequate methods of analysis for the steel which are developed by the iron and steel manufacturer, the iron and steel user, the research organization and the like and are known to the public by library, theses and the like and of whic
13、h the accuracy is verified by the certified reference material and the like. The methods in which a part of the operation of applicable method for chemical analysis is modified(1) and the scope of the method for chemical analysis is enlarged, and which satisfy the tolerance on reference material, th
14、e repeat- ability limit and the within-laboratory reproducibility limit specified in 7.2 or 7 . 3 of JIS G 1201. Note (1) Amount of sample weighed out, aliquot ratio, amount of extract- ing solvent, etc. certified reference material A material of which the chemical composition value is certified und
15、er the arbitration by the nation or the standardization organization of an association. working reference material A material of which the chernical composition is determined by the method of chemical analysis and the accuracy is guaran- teed by using the Certified reference material. When there is
16、no corresponding certified reference material, the one of which the accuracy of the conventional value of working reference material is confirmed according to 7.2 of JIS G 1201 and satisfies the standard of accuracy. 2) c) d) 4 Methods of heat analysis For the methods of heat analysis to determine t
17、he chemical composition of steel products, the analytical method suitable for the ex- pected content of each composition in cast steel shall be selected from any one of the following methods: PROTECTED BY COPYRIGHT 2 G 0320 : 2004 4.1 steel product a) Case of the chemical compositions specified in t
18、he standards for each Methods of chemical analysis specified in the standards in the following: JIS G 1211, JIS G 1212, JIS G 1213, JIS G 1214, JIS G 1215, JIS G 1216, JIS G 1217, JIS G 1218, JIS G 1219, JIS G 1220, JIS G 1221, JIS G 1222, JIS G 1223, JIS G 1224, JIS G 1225, JIS G 1226, JIS G 1227,
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