JIS-K-0085-1998-R2003-ENG.pdf
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1、JIS in flue gas JAPANESE I N DUSTR IAL STANDARD Translated and Published by Japanese Standards Association Methods for determination of bromine . I ICs 13.040.40 ; 71.040.40 Descriptors : bromine, exhaust gases, gas analysis, industrial air pollutants, industrial wastes, sampling methods, molecular
2、absorption spectro- photometry, electrochemical methods, determination of content Reference number : JIS K 0086 : 1998 (E) 8s Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 08:21:16 MDTNo
3、reproduction or networking permitted without license from IHS -,-,- STD-JIS K 0085-ENGL 1998 4933b08 0553747 479 m K 0085 : 1998 Foreword This translation has been made based on the original Japanese Industrial Standard revised by the Minister of International Trade and Industry through deliberation
4、s at Japanese Industrial Standards Committee in accordance with the Industrial Standardization Law: Date of Establishment: 1976-01-01 Date of Revision: 1998-03-20 Date of Public Notice in Official Gazette: 1998-03-20 Investigated by: Japanese Industrial Standards Committee Divisional Council on Envi
5、ronment Technical Committee on Air Quality JIS K 0085:1998, First English edition published i n 1998-10 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 T I S is to be the
6、 final authority. d Q JCA 1998 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 Co
7、pyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 08:21:16 MDTNo reproduction or networking permitted without license from IHS -,-,- 4933b08 0553748 305 I Bromine compound in the ex- , ( mgHBr/
8、m3,) Absorber method 0.4 to 50 JAPANESE INDUSTRIAL STANDARD JIS K 0085 : 1998 Methods for determination of bromine in flue gas 1 Scope This Japanese Industrial Standard specifies the methods for determination of total bromine in gas state inorganic bromides such as bromine, hydrogen bromide, etc. in
9、 flue gas. Remarks 1 In this Standard, flue gas means ones which are generated by being ac- companied with combustion, chemical reaction, etc. and exhausted out to flue, chimney or duct (hereafter referred to as “duct”). 2 The normative references to this Standard are shown in Attached Ta- ble l. 2
10、Common items The common items such as methods of chemical analysis, sampling methods of flue gas and molecular absorptiometric analysis shall be in accordance with JIS K 0050, JIS K 0095 and JIS K 0115 respectively. 3 and summary shall be shown in Table 1. Classification of analytical methods and su
11、mmary The methods for determination Table 1 Classification of analytical methods and summary fethods of etermina- ion hiosulate itrimetric aethod aercury (II) .hiocy anate ibsorpti- )metry Note (: Outlines ofanalytical method I I Range of de- Summary Sampling termination () I vol ppm haust gas is ab
12、sorbed into sodi- um hydroxide absorbent, and ixidized by sodium hypochlorite solution to bromic acid ion. The excess hypochlorite is reduced by sodium formate, and this bromic acid ion is determined by thiosulfate titrimetric method. After absorbing bromine com- pound in the exhaust gas into sodium
13、 hydroxide absorbent, making acidic and oxidizing with potassium permanganate solution, and extract the oxi- dized ion into carbon tetrachlo- ride. Add water, ammonium iron (Ill) sulfate solution and mercury ( II ) thiocyanate solu- tion to this layer, and measure the absorbance of coloured wa- Abso
14、rbent : Sodium hydroxide solution (0.1 mol/ i ) Absorbent volume: 35 ml Standard sampling volume : 20 1 Absorber method Absorbent: Sodium hydroxide solution (O. i mol/ 1 ) Absorbent volume: 35 ml Standard sampling volume: 20 1 (1.5 to 180) 0.2 to 35 (0.7 to 125) Ipplicable con- lition In accordance
15、with 6 . 1 . 1 In accordance with 6.2.1 Expression for hydrogen bromide (HBr). “ N ” in mgHBr/m3N is the first letter of Normal and express the standard state ( O “C, 101.32 Pa). Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wi
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