- Standard No.
- GB/T 223.33-1994
- 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 223.33-1994
- Replace
-
GB 223.33-1984
- Scope
- This standard specifies the determination of cerium content by extraction separation-chlorophosphine azo mA photometry. This standard is applicable to the determination of cerium content in carbon steel, alloy steel, high temperature alloy and precision alloy. Measuring range: 0.0010% to 0.20%.
GB/T 223.33-1994 history
- 1994 GB/T 223.33-1994 Methods for chemical analysis of iron,steel and alloy. The chlorophosphonazo mA photometric method for the determination of cerium content after extraction separation
- 1984 GB 223.33-1984 Methods for chemical analysis of iron,steel and alloy--The chlorophosphonazo mA photometric method for the determination of cerium content after extraction separation
GB/T 223.33-1994 Methods for chemical analysis of iron,steel and alloy. The chlorophosphonazo mA photometric method for the determination of cerium content after extraction separation has been changed from GB 223.33-1984 Methods for chemical analysis of iron,steel and alloy--The chlorophosphonazo mA photometric method for the determination of cerium content after extraction separation.