Zinc Oxide (indirect method)

Test Item Standard Test Result
Zinc oxide % ≥99.90 99.91
Metals(As Zn)% ≤none none
Lead oxide(As Pb) % ≤none none
Manganic Oxide% ≤0.0001 0.0001
Cupric oxide% ≤ 0.0002 0.0002
Hydrochloric acid insoluble matter %≤ 0.006 0.006
loss of ignition %≤ 0.2 0.2
Residue on sieve(45um)%≤0.10 0.10
hydrotrope%≤0.10 0.10
volatile %≤0.3 0.3

Zinc Oxide(Rubber) 95%
Item Standard
ZnO %≥ 95
PbO %≤ 0.2
CuO %≤ 0.006
Cd %≤ 0.005
Mn %≤ 0.0003
HCL Insoluble %≤ 0.03
Loss on Ignition %≤ 0.4
Residue on Sieve %≤ 0.3
Water Soluble Matter %≤ 0.4
Moisture %≤ 0.2


Zinc oxide（Indirect method）
Test Item standard results of inspection
Zinc oxide（as DRY ）%≥ 93 93
Hardware (base on Zn) % ≤ none none
Lead oxide (base on Pb) %≤ 0.037 0.036
Oxide of mangan (base on Mn) %≤ 0.0001 0.0001
Cupelric oxide (base on Cu) %≤ 0.0002 0.0002
Muriatic acid insoluble substance，%≤ 0.006 0.006
Loss on ignition%≤ 0.2 0.2
Residue on sieve (45um mesh) %≤ 0.10 0.10
Hydrotrope%≤0.10 0.10
105℃Volatiles%≤ 0.3 0.3