EPA Method 551 - Disinfection By-Products Back Catalog number: 32852 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 91130 Complete Set of Aroclor Mixes Price on request 0675.21-100-IO 5 alpha(H)-Pregnane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 641-85-0 Price on request 83579 Dinoseb Price on request