Standard No.:	GB 223.65-1988
English Name:	Methods for Chemical Analysis of Iron, Steel and Alloy - The Sodium (Potassium) Periodate Photometric Method for the Determination of Manganese Content
Chinese Name:	钢铁及合金化学分析方法 高碘酸钠(钾)光度法测定锰量
Professional Classification:	GB    National Standard
Source Content Issued by:	MOMI
Issued on:	18-Jan-88
Implemented on:	1989-2-1
Status:	valid
Target Language:	English
File Format:	PDF
Word Count:	2000 words
Translation Price(USD):	40.0
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1 Method Summary After the dissolution of the sample by acid, in the medium of the sulfuric acid and phosphoric acid, the manganese is oxidized into septivalency with sodium periodate (kalium) and then measure its absorbance. 2 Reagent 2.1 Hydrofluoric acid (ρ 1.15g/ml). 2.2 Hydrochloric acid (ρ 1.19g/ml). 2.3 Nitric acid (ρ 1.42g/ml). 2.4 Nitric acid(1+4). 2.5 Nitric acid(2+98). 2.6 Sulfuric acid (1+1).

Contents 1 Method Summary 1 2 Reagent 1 3 Analysis Procedures 2 4 Calculation (Expression) of Analytic Result 3 5 Precision 4 Appendix A Source Data Common Precision Test 5 Additional Explanation: 5