Index

BA01－05 (Ⅰ type)

BA01－05 (Ⅱ type)

Top grade

First grade

Qualified product

Top grade

First grade

Qualified product

Zinc oxide (as dry) /% ≥

99.70

99.50

99.40

99.70

99.50

99.40

Metallic matter (as ZnJ) /% ≤

--

--

0.008

--

--

0.008

Oxide (as Pb) /% ≤

0.037

0.05

0.14

--

--

--

Oxide of Mn(as Mn) /% ＞

0.0001

0.0001

0.0003

--

--

--

Copper oxide (as Cu) ≤

0.0002

0.0004

0.0007

--

--

--

Insoluble matter in HCl %0.006 ≤

0.008

0.008

0.05

--

--

--

Loss on ignition% ≤

0.2

0.2

0.2

--

--

--

Residue on sieve (μM mesh) % ≤

0.1

0.15

0.20

0.10

0.15

0.20

Water soluble matter % ≤

0.10

0.10

0.15

0.10

0.10

0.15

Volatile matter % ≤

0.3

0.40

0.5

0.3

0.4

0.5

Color (compared with standard sample) ≥

--

--

--

similar

slight

little