stop off lacquer/masking compound for chromium plating operation as per condition given annexure i 1.chromic acid-req.250 g/l 2.sulphuric acid-req.2.5g/l 3.temperature-req.55 to 60 degree c 4.current density-req.24 a/ sqr.inch andzincal ncz - 400 a - corrigendum.