GB/T 4700.7-1998 Methods for chemical analysis of calcium-silicon The infrared absorption method and the combustion-potassium iodate titration method for the determination of sulfur content (English Version)
This standard specifies the determination of sulfur content by infrared absorption method and combustion potassium iodate titration method. This standard applies to the determination of sulfur content in silicon-calcium alloys. Measuring range: 0.005% to 0.070%.
GB/T 4700.7-1998 history
1998GB/T 4700.7-1998 Methods for chemical analysis of calcium-silicon The infrared absorption method and the combustion-potassium iodate titration method for the determination of sulfur content
0000 GB/T 4700.8-1988
GB/T 4700.7-1998 Methods for chemical analysis of calcium-silicon The infrared absorption method and the combustion-potassium iodate titration method for the determination of sulfur content was changed to YB/T 5317-2006 Calcium silicon alloy chemical analysis method infrared absorption method and combustion potassium iodate titration method for determination of sulfur content.