EPA Method 551.1 Internal Standard Back Catalog number: 32103 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1652.12-100-IO 1,1,1,3,11,12-Hexachlorododecane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 865306-22-5 Price on request 685296 Chloramben, 100 µg/ml, Acetonitrile, 5ml Price on request 1245.9-K-IO n-Nonane, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 111-84-2 Price on request