EPA 1620 Standard 1 Back Catalog number: 52139 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1972.12-50-IO 2,2',4,4',5,6'-Hexabromodiphenyl ether, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 207122-15-4 Price on request 8353.12-50-IO 3'-Fluoro-2,2',4,5,5'-pentachlorobiphenyl, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. Price on request 0086.6-100MG 1-Hexanethiol, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 111-31-9 Price on request