EPA Method 524 & 624 - Internal Standard Back Catalog number: 19794 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3090.12-50-IO 3-Bromobiphenyl, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 2113-57-7 Price on request 51183 Retention Time Marker Solution Iowa OA-2 Price on request 8368.6 2-Bromo-4,5,6-trichloroaniline, , Solvent-, Unit , # of units-, Cas.no. Price on request