CERTIFICATE OF ANALYSIS
Product: Zinc Oxide
Reference Standard: GBT3185-92
Batch No: 2009061239
	Item	Standard	Result
1)	Appearance	A soft, white or faintly yellowish-white, amorphous powder	Confirm
2)	Assay % m/m	99.7 min	99.72
3)	Identification	Positive reaction	Positive reaction
4)	Heavy metal(tested in Zn) %	None	None
5)	Carbonates and substances insoluble in acids %	<=0.02	0.01
6)	PbO(tested in Pb) %	<=0.037	0.035
7)	MnO(tested in Mn) %	<=0.0001	0.0001
8)	CuO(tested in Cu) %	<=0.0002	0.0001
9)	Sieve Residue(45um) %	<=0.1	0.05
10)	Loss on ignition % m/m	<=0.2	0.1
11)	105 volatile substances %	<=0.3	0.2
12)	Water dissoluble %	<=0.1	0.08

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