This Standard contains the following;

Element, Concentration (µg/ml)

Al 10;Sb 10;As 10;Ba 10;Be 10/p>

Cd 10;Cr 10;Co 10; Cu 10;Pb 10

Mn 10;Mo 10 ;Ni 10; Se 50 ;Ag 10

Tl 10;Th 10 ;U 10;V 10 ;Zn 10

Matrix - 2% HNO3 Tr HF