DEF Back Catalog number: 79583 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 52074 Drinking Water Standards Kit Price on request 2128.12-10-IO Arochlor 1254, 10µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 11097-69-1 Price on request 0220.20-10MG Perylene, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 198-55-0 Price on request