- Standard No.
- GB/T 4324.9-2012
- Language
- Chinese, Available in English version
- Release Date
- 2012
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Latest
-
GB/T 4324.9-2012
- Replace
-
GB/T 4324.1-1984
- Scope
- This part of GB/T 4324 specifies the determination method of cadmium in tungsten powder, tungsten bar, tungsten carbide, tungsten trioxide, tungstic acid, blue tungsten, purple tungsten, ammonium paratungstate and ammonium metatungstate. This part is applicable to tungsten powder , tungsten bar, tungsten carbide, tungsten trioxide, tungstic acid, blue tungsten, purple tungsten, ammonium paratungstate and ammonium metatungstate, the determination of cadmium content, method one measurement range is 0.000 2%~0.030%; method two measurement range is 0.000 4%~0.003 0%,
GB/T 4324.9-2012 history
- 2012 GB/T 4324.9-2012 Methods for chemical analysis of tungsten.Part 9:Determination of cadmium content.Inductively-coupled plasma atomic emission spectrometry and flame atomic absorption spectrometry
- 2008 GB/T 4324.8-2008 Methods for chemical analysis of tungsten.Determination of nickel content.The inductively coupled plasma atomic emission spectrometry、flame atomic absorption spectrometry and dimethylglyoxime gravimetry
- 1984 GB/T 4324.9-1984 Methods for chemical analysis of tungsten--The dimethylglyoxime gravimetric method for the determination of nickel content
GB/T 4324.9-2012 Methods for chemical analysis of tungsten.Part 9:Determination of cadmium content.Inductively-coupled plasma atomic emission spectrometry and flame atomic absorption spectrometry has been changed from GB/T 4324.1-1984 Methods for chemical analysis of tungsten--The square wave polarographic method for the successive determination of lead and cadmium contents.