GB/T 223.69-1997 Methods for chemical analysis of iron, steel and alloy. The gas-volumetric method after combustion in the pipe furnace for the determination of carbon content (English Version)
This standard specifies the determination of carbon content by the gas volumetric method after combustion in a tube furnace. This standard applies to the determination of 0.10% (m/m) to 2.00% (m/m) carbon content in iron, steel, superalloys and precision alloys.
GB/T 223.69-1997 history
2008GB/T 223.69-2008 Iron,steel and alloy.Determination of carbon contents.Gas-volumetric method after combustion in the pipe furnace
1997GB/T 223.69-1997 Methods for chemical analysis of iron, steel and alloy. The gas-volumetric method after combustion in the pipe furnace for the determination of carbon content