Diphenylsulfide in isooctane, Blank Units: 5x1mL ampoules Back Catalog number: S-4035-5K-IOX5 Manufacturer: CHIRON AS Availability: 3 weeks Price on request - + Recommended PCB-IS-B Mass-Labelled PCB Solution/Mixture , 1.2ml, nonane Price on request 71970 4,4'-Dichlorobenzhydrol Price on request 31023 EPA Method 515.1 Internal Standard Price on request