USP232/ICH Q3D Inhalation STD# 3 NIA

As (2 ppm), Ba (300 ppm), Cd (2 ppm), Co (3 ppm), Cr (3 ppm), Cu (30 ppm), Hg (1 ppm), Li (25 ppm), Mo (10 ppm), Ni (5 ppm), Pb (5 ppm), Sb (20 ppm), Sn (60 ppm), V (1 ppm)

in 10% HNO3 / 0.1% HF

Elements not intentionally added - 10X concentrate