Zn, 1000 µg/mL in 5% HNO3, 100ml

Total Cyanide (CN-), 100µg/ml in in H2O/NaOH,100ml

Nitrite Standard: NO2-, 1000µg/mL iin Water, 100ml

Arsenic Standard: 1000 µg/g As in 75 cSt Hydrocarbon Oil, 50g