SODIUM CHLORIDE	≥ 99.6%
MOISTURE	≤ 0.15%
WATER-INSOLUBLE	≤ 0.01%
SULPHATE(as Na2SO4)	≤ 0.10%
LEAD(as Pb)	≤ 1PPM
COPPER(as Cu)	≤ 1PPM
IRON(as Fe)	≤ 1PPM
ARESNIC(as As)	≤ 0.5PPM
ANTICAKING AGENT	MgCl2
WHITENESS	≥ 80
GRAIN SIZE	from 150um to 600um ≥ 80%