Index | |||||||||
Rubber type | Coating type | ||||||||
Top-grade | First grade | Top-grade | First grade | ||||||
Appearance | White powder | ||||||||
Zinc oxide(Zn0 calculating as dry material),W/% ≥ | 99.7 | 99.5 | 99.7 | 99.5 | |||||
Metal content(as Zn),W/% ≤ | NO | NO | NO | 0.008 | |||||
Lead oxide(as Pb),W/% ≤ | 0.008 | 0.05 | 0.010 | - | |||||
Manganese's oxide(as Mn ),W/%≤ | 0.0001 | 0.0001 | 0.0001 | - | |||||
Cupric oxide(as Cu ),W/% ≤ | 0.0002 | 0.0002 | 0.0002 | - | |||||
Cd,W/% ≤ | 0.002 | 0.005 | 0.010 | _ | |||||
Fe,W/% ≤ | 0.005 | 0.010 | 0.010 | _ | |||||
As,W/% ≤ | _ | _ | _ | _ | |||||
Alkalinity,ml ≤ | _ | _ | _ | _ | |||||
