Pentachlorobenzene,100 µg/mL,cyclohexane,1mL,

2,3,3',5,5'-Pentachlorobiphenyl, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 39635-32-0

1,4-bis(Pentabromophenoxy)tetrabromobenzene, 100µg/ml in Toliene, 1ml

EPA Method 515.1 Internal Standard