BTEX (50 µg/mL) Back Catalog number: 98691 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 82515 EPA Method 8250 - Acid Matrix Spiking Solution Price on request 66198 2,2',3,3',4,5,5',6-Octachlorobiphenyl (198) Price on request 1971.12-5MG 2,2',4,4',5,5'-Hexabromodiphenyl ether, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. 68631-49-2 Price on request