EPA Method 551 - Disinfection By-Products Back Catalog number: 32852 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended P48-RS Mass-Labelled PCB Recovery Standard, 1.2ml, nonane Price on request 1502.10-K-IO 1,4-Diethylbenzene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 105-05-5 Price on request 675092 Sodium p-n-decylbenzenesulfonate, 10mg Price on request