Description

Lithopone national standard GB/T********5 Item Index B**1 B**2 B**1 Baï&frac*4;‹SO4(as ZnS)%(m/m) *9 *9 *9 Total zinc amount(base on zinc sulfate)%(m/m) *8 *8 *0 Zinc oxide, %(m/m) 0.6 0.3 0.3 **5 volatile%(m/m) 0.3 0.3 0.3 After Soluble in water%(m/m) 0.4 0.4 0.3 Residue on sieve (*3um sieve pore) %(m/m) 0.1 0.1 0.1 Color(compare with standard sample) Excelled Excelled Excelled Water extraction alkaline hardness Neutral Oil absorption, g/**0g *4 *1 *0 Reducing power(compare with standard sample), % **5 **5 **5 Hiding power(contrast ratio) Not lower than 5% of standard sample