- Standard No.
- GB/T 4324.14-1984
- Language
- Chinese
- Release Date
- 1984
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Replace By
-
GB/T 4324.13-2008
- Lastest
-
GB/T 4324.13-2008
- Scope
- This standard is applicable to the determination of calcium content in tungsten powder, tungsten bar, tungsten trioxide, tungstic acid and ammonium paratungstate. Measuring range: 0.0007~0.030%.
GB/T 4324.14-1984 history
- 2008 GB/T 4324.13-2008 Methods of chemical analysis of tungsten Determination of calcium content Inductively coupled plasma atomic emission spectrometry
- 1984 GB/T 4324.14-1984 Methods for chemical analysis of tungsten--The atomic absorption spectrophotometric method for the determination of calcium content
GB/T 4324.14-1984 Methods for chemical analysis of tungsten--The atomic absorption spectrophotometric method for the determination of calcium content was changed to GB/T 4324.13-2008 Methods of chemical analysis of tungsten Determination of calcium content Inductively coupled plasma atomic emission spectrometry.