Metoprolol tartrate, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 56392-17-7

Arochlor 1248 , 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-5, Cas.no. 12672-29-6

Vamidothion, 100 µg/ml, Toluene, 1ml

ISO 9377-2 Standard Mixture of n-Alkanes C10-C40 (all even) Determination of Hydrocarbon Oil in Water Index 16 Analytes, each 50 µg/mL in n-Pentane; units: 1x1mL, 1x5mL, 10x1mL This standard is also available as 100µg/mL in Cyclohexane Units: 1x1