4-Chlorophenol solution, 200mg AOX/l, 100ml

As @ 1000 µg/mL in 5% HNO3, 100ml

Complex Cyanide (CN-), 1000µg/ml in Tr. NaOH / Water, 100ml

V21 Wear Metals Standard: 100µg/g in Hydrocarbon Oil, 100g