Spec.
ZnS + BaSO4 99% min.
ZnS 28% min.
Zinc oxide 0.6% max.
Volatile matter at 105 centigrade degrees
0.3 PCT max.
Matter soluble in water 0.4% max.
Residue on sieve (63 um) 0.1% max.
Color (than to standard sample ) similar
Alkalinity of the aqueous extract neutrale
Oil absorption value(g/100g) 4 max.
Achromic power (than to standard sample) 100% min.
Hiding power (comparative ratio) not lower than 5 PCT. of
standard sample