PCB No. 4, certified, 25mg

Ofloxacin, certified, 0.1g

ISO 9377-2 Standard Mixture of n-Alkanes C20-C40 (all even) Determination of Hydrocarbon Oil in Water Index 11 Analytes, each 50µg/mL in n-Pentane, units: 1x1mL, 1x5mL, 10x1mL This standard is also available as 50µg/mL in n-hexane; units 1x1mL, 1x5

Fludioxonil, 100 µg/ml, Acetonitrile, 5ml