Chromium (Cr), 1µg/ml in 2%-HNO3 / Water, 100ml

Chlorine, 10000µg/g (1.00wt%) in Mineral Oil,100ml

Magnesium, 1000ug/ml, 100ml

Silver (Ag) standard, 1000µg/mL, in 5% HNO3, 100ml