JB/T 9548.1-1999Methods for chemical analysis of iron-chromium-aluminium alloys - Determination of carbon content by coulometric method (English PDF)
铁铬铝合金化学分析方法 库仑法测定碳量
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Issued by
MIIT
Level / Type
Industry · Recommended
Issue date
August 6, 1999
Implementation date
January 1, 2000
Scope
JB/T 9548.1-1999 is the English-translated version of 铁铬铝合金化学分析方法 库仑法测定碳量.
JB/T 9548.1-1999 is the Chinese standard "Methods for chemical analysis of iron-chromium-aluminium alloys - Determination of carbon content by coulometric method".
Its scope clause reads: This standard specifies the coulombic method for the determination of carbon content in iron-chromium-aluminium alloys. This standard is applicable to the determination of carbon content in iron-chromium-aluminium alloys, and the determination range is from 0.01% to 0.20%. Its clauses include method summary.
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Document preview — JB/T 9548.1-1999
National Standard of the People's Republic of China
Issued by: Ministry of Industry and Information Technology of the People's Republic of China
Contents
- Foreword
- 1 Scope
- 2 Method Summary
- 3 Reagents and Instruments
- 4 Analytical Procedures
- 5 Calculation of Analysis Results
- 6 Permissible Deviation
1 Scope
This standard specifies the coulombic method for the determination of carbon content in iron-chromium-aluminium alloys.
This standard is applicable to the determination of carbon content in iron-chromium-aluminium alloys, and the determination range is from 0.01% to 0.20%.
2 Method Summary
The test portion will produce carbon dioxide by burning at high temperature in oxygen stream, meanwhile, the produced gas will be sent into the barium perchlorate solution of the given pH value by using oxygen as the carrier gas, and here the pH value of the solution will change, and the absorption solution will be electrolyzed by the pulse current with constant electric quantity to restore to its original pH value. The pulse number shall be recorded with counter and this pulse number is proportional to the carbon content, thereby, the percentage content of carbon may be calculated.
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
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Related Standards
JB/T 9548.2-2015 — Methods for chemical analysis of iron-chromium-aluminium alloys - Part 2: Determination of carbon
JB/T 9548.2-1999 — Methods for chemical analysis of iron-chromium-aluminium alloys - Determination of carbon content by gas volumetric method
JB/T 9548.3-2015 — Methods for chemical analysis of iron-chromium-aluminium alloys - Part 3: Determination of manganese
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JB/T 9548.1-1999
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