This standard ( Part 1 ) covers methods of chemical analysis of tin and antimony in lead and tin base solders ( see IS : 193-1982〓 and IS : 1921 -1975〓 ) having chemical composition within the following range. Lead shall be determined by difference except for Grade Sn95 Sb5 of IS : 193-1982〓 for which Part 4 of this standard may be followed:
Constituents Percent
Tin 1-96
Antimony 0·05-6·0)
Lead
Over 30
IS 998 Pt.1-1983 history
1983IS 998 Pt.1-1983 Methods for chemical analysis of solders (soft solders and rosin core solders) Part 1 Determination of tin and antimony