Standard Specification for Platinum Sponge
Element
(max.ppm)
Pt (% min.)
99.95%
Au
10
Ag
10
Pd
10
Ir
10
Rh
10
Ru
9
Os
15
Al
5
As
20
B
5
Bi
5
Ca
5
Cd
5
Co
5
Cr
5
Cu
10
Fe
5
Mg
5
Mn
5
Mo
5
Ni
5
Pb
5
Sb
10
Si
10
Sn
10
Ti
5
W
5
Zn
5
Zr
5