NF A06-341-2:1990 Steel and cast iron. Determination of total silicon content. Reduced molybdosilicate spectrophotometric method. Part 2 : silicon contents between 0,01 and 0,05 per cent.
1990NF A06-341-1:1990 Steel and cast iron. Determination of total silicon content. Reduced molybdosilicate spectrophotometric method. Part 1 : silicon contents between 0,05 and 1,0 per cent.