... /Average level in2006/Excellent class, ≥Whiteness 7581.2,0.15 mm -0.85mm, ≥Particle size 0.15mm -0.85mm8094.5, ≥Sodium Chloride % 99.3099.46, ... ≤ Moisture % 0.300.10, ≤Water insoluble matter % 0.050.01As,mg/kg ≤Arsenic (as As) mg ... /kg 0.50.5Pb,mg/kg ≤Heavy metal (as Pb) ... mg/kg 1.01.0[Fe(CN)6]4-,mg/kg ≤Anti-caking agent ( ...