Heptafluorobutyric acid, 100mg

PCB 112, 1000µg/ml in Isooctane, 10ml

Propetamphos, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 31218-83-4

EPA Method 502/524 High Conc VOC Mix #8, 2000µg/ml in MeOH, 1ml