This Part of GB/T 223 specifies fluorescent spectrometry to be applied to determine the content of silicon, manganese, phosphorus, sulfur, copper, aluminium, nickel, chromium, molybdenum, vanadium, titanium, tungsten and niobium.
This Part is applicable to cast iron, pig iron, non-alloy steel, low alloy steel, and the determination range of each element is detailed in Table 1.