- Standard No.
- GB/T 5687.7-1988
- Language
- Chinese
- Release Date
- 1988
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Replace By
-
GB/T 4699.4-2008
- Lastest
-
GB/T 4699.4-2008
- Scope
- This standard applies to the determination of carbon content in ferrochromium. Measuring range: 4.00% to 10.50%.
GB/T 5687.7-1988 history
- 2008 GB/T 4699.4-2008 Ferrochromium and silicochromium. Determination of carbon content. Infrared absorption method and gravimetric method
- 1988 GB/T 5687.7-1988 Methods for chemical analysis of ferro-chromium--The gravimetric method for the determination of carbon content
GB/T 5687.7-1988 Methods for chemical analysis of ferro-chromium--The gravimetric method for the determination of carbon content was changed to GB/T 4699.4-2008 Ferrochromium and silicochromium. Determination of carbon content. Infrared absorption method and gravimetric method.