JIS-H-1069-1997-ENG.pdf
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1、STD-JIS H LObS-ENGL 1997 Li733b08 05482b7 175 J IS . r JIS HI 1069 : 1997 JAPANESE I NDUSTRIAL STANDARD Translated and Published by Japanese Standards Association Methods for determination of cadmium in copper and copper alloys ICs 77.120.30 Descriptors : copper, copper alloys, cadmium, determinatio
2、n of content Reference number : JIS H 1069 : 1997 (E) 7 s Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/13/2007 08:21:59 MDTNo reproduction or networking permitted without license from IHS -,-,-
3、STD-JIS H LObS-ENGL 1777 m Li733b08 05Li82bB 02L = H 1069 : 1997 This translation has been made based on the original Japanese Industrial Standard established by the Minister of International Trade and Industry through deliberations at Japanese Industrial Standards Committee in accordance with the I
4、ndustrial Standardization Law: Date of Establishment: 1997-05-20 Date of Public Notice in Official Gazette: 1997-05-20 Investigated by: Japanese Industrial Standards Committee Divisional Council on Non-Ferrous Metals c d I JIS H 1069 : 1997, First English edition published in 1997-12 Translated and
5、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. 0 JSA 1997 All rights reserved. Unless otherwise specified, no part of this publication may be reproduc
6、ed 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 Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing,
7、Bernie Not for Resale, 03/13/2007 08:21:59 MDTNo reproduction or networking permitted without license from IHS -,-,- 4 STD-JIS H LObS-ENGL 1797 Li933b08 05482b7 Tb W JAPANESE INDUSTRIAL STANDARD JIS H 1069 1 1997 Methods for determination of cadmium in copper and copper alloys Introduction IS0 5960,
8、 Copper alloys-Determination of cadmium content - Flame atomic absorption spectrometric method published as the first edition in 1984 is the corresponding International Standard to this Japanese Industrial Standard which specifies the corresponding parts of IS0 (Atomic absorption spectrometric metho
9、d) without any modification -in technical content. The trioctylamine extraction atomic absorption spectrometric method which has no the corresponding International Standard is specified as Japanese Industrial Standard. 1. Scope This Japanese Industrial Standard specifies the methods for determinatio
10、n of cadmium in copper and copper alloys (rolled coppers). Remarks 1. Normative reference to this Standard is shown as follows. JIS H 1012 General rules for chemical analysis of copper and copper alloys 2. The corresponding International Standard is as follows. IS0 5960 :1984 Copper alloys - Determi
11、nation of cadmium content- Flame atomic absorption spectrometric method 2. General requirements General requirements common to methods for determina- tion shall be in accordance with JIS H 1012. 3. Division of determination methods The method for determination of cadmium content shall be in accordan
12、ce with either of the following. (i) Trioctylamine extraction atomic absorption spectrometric method This method is applicable to the sample of copper content is not less than 99.90 %(mim), cadmium content 0.000 02 %(m/m)or over up to and including 0.000 3 %(mim). (2) Atomic absorption spectrometric
13、 method This method is applicable to the sample of cadmium content 0.000 5 %(mim) or over up to and including 2.0 %(m/m). 4. Trioctylamine extraction atomic absorption spectrometric method 4.1 Summary Dissolve the sample with nitric acid, add sulfuric acid and heat to re- move nitric acid by generat
14、ing the white fume with sulfuric acid. Add hydrochloric acid and extract cadmium chloride complex formed with 4-methyl-2-pentanone contained trioctylamine. Atomize the organic phase into an air-acetylene flame of the atomic ab- Copyright Japanese Standards Association Provided by IHS under license w
15、ith JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/13/2007 08:21:59 MDTNo reproduction or networking permitted without license from IHS -,-,- 2 H 1069 : 1997 sorption spectrometer and measure the absorbance. Reagents The reagents shall be as follows. Hydrochloric acid (l+
16、l) Nitric acid (l+l) Sulfuric acid (1 +i) Extracting reagent Add 4-metyl-2-penthanone (I) to 2 ml of triocthylamine and make up the volume to 100 ml. 4-metyl-Z-pentanone Butyl acetate Standard cadmium solution (1 not less than 99.9 %(m/m) and place it in a beaker (200 ml), cover the beaker with a wa
17、tch glass, add 25 ml of nitric acid (l+l) and heat gently to dissolve the sample. After cooling to ordinary temperature, remove the watch glass after rinsing rear bottom of it and inside wall of the beaker with water. Transfer the solution into a 1 O00 ml volumetric flask with water, dilute to the m
18、ark with water and make the stock solution (1 mgCd/ml). The needed amounts of the standard cadmium solution A shall be prepared fleshly from this stock solution with 20 times correct dilution by water at each time before use. (5) Standard cadmium solution B (5ugCd/ml) The needed amounts of the stand
19、ard cadmium solution B shall be prepared fleshly from above standard cadmium solu- tion A (4) with 10 times correct dilution by water at each time before use. i Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for
20、 Resale, 03/13/2007 08:21:59 MDTNo reproduction or networking permitted without license from IHS -,-,- STD-JIS H LObS-ENGL I777 4933b08 0548273 479 5 H 1069 : 1997 5 . 3 Test portion Test portion shall be 1.0 g of the sample. 5 . 4 Procedure 5.4.1 shall be given by the following procedures. Preparat
21、ion of the sample solution The preparation of the sample solution (i) Weigh the sample and transfer into a tetrafluoroethylene resin beaker (200 mi) or a polyethylene beaker (200 mi). (2) Cover the beaker with a tetrafluoroethylene resin lid or polyethylene lid, add 40 ml of mixed acid (1) and heat
22、gently to dissolve the sample. (3) After cooling to ordinary temperature, remove the lid after rinsing rear bottom of it and inside wall of the beaker with water. Transfer the solution into a 100 ml, 1 O00 ml, 2 O00 ml volumetric flasks with water in accordance with cadmium contents; 0.000 5 %(mim)
23、or over to and excluding 0.05 %(m/m), 0.05 %(m/m) or over to and excluding 0.5 %(m/m), 0.5 %(m/m) or over up to and including 2 %(m/m) respec- tively. Dilute the solutions of each flask to the mark with water. 5.4.2 Preliminary measurement Preliminary measurement shall be given by the following proc
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