Formaldehyde (0.3 ppm)

2,3',4,4',5-Pentachlorobiphenyl, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 31508-00-6

Aclonifen, 100 µg/ml, Ethyl acetate, 5ml

β-1,2,5,6,9,10-Hexabromocyclododecane, 50µg/ml in Toluene, 1,2ml