1,3-Dinitropyrene, 100µg/ml in Toluene, 1ml

Melamine polyphosphate,neat,neat,500g,

2,3,5,6-Tetrachlorobiphenyl (65)

Calibration Standard THC 20 Analytes, each concentration as listed in cyclohexane; unit : 6x1mL The working standard concentrations are: o-Terphenyl (ITSD) 200 µg/mL 5a-Androstane (ITSD)