EPA Method 507 - Performance Check Solution Back Catalog number: 19030 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 1270.9-K-CY 1,2,4-Trimethylbenzene, 1000µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 95-63-6 Price on request 680693 2,5-Dimethylphenol, 500mg Price on request