Lithopone B311 with ZnS content 30%. ISO9001:2008 SGS ItemIndexTotal zinc and Barium sulphate≥99.0zinc sulfide content, %≥30.0zinc oxide content, %≤0.3Color, compared with standard samplesbetterTinter reducing power, compared with standard samples ≥105105°C volatile matter, %≤0.3Water solubles, %≤0.3Water suspension pH-valueneutralOil absorption, g/ 100g6.0-8.0Residue on sieve 45μm, %≤10Hiding ...