7.1
The ladle analysis of steel shall not show sulphur and phosphorus in amounts exceeding 0.05 percent each.
7.1.1
The ladle analysis of steel shall be carried out either by the method specified in IS 228 or any other established instrumented/chemical method. In case of dispute the procedure given in IS 228 and its relevant parts shall be referee method.
However, where the method is not given in IS 228 and its relevant parts, the referee method shall be as agreed to between the purchaser and the manufacturer.
7.1.2 Product Analysis
The maximum permissible variation of sulphur and phosphorus, in case of product analysis from the limits specified under 7.1 shall be 0.005 percent each.
NOTE — The product analysis is not applicable to rimming quality steel.