This standard (Part VIII) covers method for determination of silicon ≥0.1 percent in plain carbon and alloy steels including high speed steels containing tungsten.
IS 228 Pt.8-1975 history
1990IS 228 Pt.8-1989 Methods of chemical analysis of steel Part 8 Determination of silicon by gravimetric method (silicon content 0.05 to 5.00%)
1975IS 228 Pt.8-1975 Methods of chemical analysis of steel Part 8 Gravimetric determination of silicon (for silicon ≥ 0.1%)