ITEM	SPECIFICATION
	OT-20	OT-33
Appearance	Non-flying Yellow Powder
Total Sulfur	80.00±1.0%	67.00±1.0%
Insoluble Sulfur of Total Sulfur	≥90.00%	≥90.00%
Oil Content	20.00±1.0%	33.00±1.0%
Acidity as H2SO4	≤0.05%
Loss on heating (60℃)	≤0.50%
Ash	≤0.20%
Residue on 150um sieve	≤0.20%