Instrument Calibration Standard 2 for ICP and HGA elements Certified Reference Material, 400 mg/L Ni, 200 mg/L Zn, 150 mg/L Mn,

Instrument Calibration Standard 2 for ICP and HGA elements Certified Reference Material, 400 mg/L Ni, 200 mg/L Zn, 150 mg/L Mn, 100 mg/L each of Ag, Cr in HNO₃ 5%