Primary Calibration PID (VPH) Back Catalog number: 91784 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 674863 Didodecyldimethylammonium bromide, 100mg Price on request 2222.12-100-IO 4'-Fluoro-2,3',4,5-tetrachlorobiphenyl, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. Price on request 677723 D7-Beflubutamid, 100 µg/ml, Acetonitrile, 1ml Price on request