检验项目

标准规定

纯 度

≥59.5%

Rh

<0.0008%

Ru

≤0.004%

Ir

≤0.0008%

Zn

≤0.002%

Cu

≤0.0003%

Ag

≤0.0004%

Ni

≤0.0003%

Al

<0.001%

Bi

<0.0003%

Fe

<0.001%

Pt

0.0007%

Pb

<0.001%

Cr

<0.0007%

Sn

<0.001%

Mn

<0.0003%

Mg

<0.001%

Au

<0.001%

Si

<0.003%

Appearance

Deep rufous crystalline powder