Certified Reference Material, 500 mg/L Al, 250 mg/L V, 100 mg/L each of As, Be, Co, Cr, Cu, Fe, Mn, Ni, Pb, Zn, 25 mg/L each of Cd, Se, 10 mg/L Hg in HNO3 5%
Certified Reference Material, 200 mg/L each of Al, As, Ba, Se, Tl, 100 mg/L Fe, 50 mg/L each of Co, Mn, Ni, Pb, Sb, V, Zn, 25 mg/L Cu, 20 mg/L Cr, 5 mg/L each of Ag, Be, Cd in HNO3 5%
Certified Reference Material, 200 mg/L each of Bi, In, Pb, 150 mg/L Ga, 100 mg/L Al, 50 mg/L Ni, 30 mg/L Cu, 25 mg/L Cr, 20 mg/L each of Cd, Co, 15 mg/L each of B, Fe, 5 mg/L each of Ba, Mn, 1 mg/L Be in HNO3 5%
Certified Reference Material, 100 mg/L each of Al, As, Pb, Sb, Se, Tl, 50 mg/L each of Ba, Co, Cu, Ni, 20 mg/L each of Cr, Fe, Mn, 10 mg/L Ag, 5 mg/L each of Be, Cd in HNO3 5%, tr. HF