- Standard No.
- GB/T 8152.4-1987
- Language
- Chinese
- Release Date
- 1987
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Replace By
-
GB/T 8152.7-2006
-
GB/T 8152.14-2019
- Lastest
-
GB/T 8152.14-2019
- Scope
- This standard applies to the determination of the amount of copper in lead concentrate. Measuring range: 0.5% to 3.5%.
GB/T 8152.4-1987 history
- 2019 GB/T 8152.14-2019 Methods for chemical analysis of lead concentrates—Part 14: Determination of silicon dioxide content—Molybdenum blue spectrophotometry
- 2006 GB/T 8152.7-2006 Methods for chemical analysis of lead concentrates. Determination of copper content. Flame atomic absorption spectrometric method
- 1987 GB/T 8152.4-1987 Methods for chemical analysis of lead concentrates--The atomic absorption spectrophotometric method for the determination of copper content
GB/T 8152.4-1987 Methods for chemical analysis of lead concentrates--The atomic absorption spectrophotometric method for the determination of copper content was changed to GB/T 8152.7-2006 Methods for chemical analysis of lead concentrates. Determination of copper content. Flame atomic absorption spectrometric method.