ASTM D-4815 Calibration Mix #4

2,3,5-Trimethylpyrazine, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-, Cas.no. 14667-55-1

Triphenylene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 217-59-4

1-Acetyl-2-thiourea