- Standard No.
- GB/T 223.18-1994
- Language
- Chinese, Available in English version
- Release Date
- 1994
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Latest
-
GB/T 223.18-1994
- Replace
-
GB 223.18-1982
- Scope
- This standard specifies the sodium thiosulfate separation-iodometric method for the determination of copper content. This standard is applicable to the determination of copper content in pig iron, carbon steel, alloy steel, superalloy and precision alloy. Measuring range: 0.10% to 5.00%.
GB/T 223.18-1994 history
- 1994 GB/T 223.18-1994 Methods for chemical analysis of iron steel and alloy.The sodium thiosulfate separation iodimetric method for the determination of cupper content
- 1982 GB 223.18-1982 Chemical analysis of iron,steel and alloy--The determination of copper by thiosulfate-iodide method
GB/T 223.18-1994 Methods for chemical analysis of iron steel and alloy.The sodium thiosulfate separation iodimetric method for the determination of cupper content has been changed from GB 223.18-1982 Chemical analysis of iron,steel and alloy--The determination of copper by thiosulfate-iodide method.