EPA Method 552.1 - Surrogate Standard Back Catalog number: 31057 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended C16173650 Phthalic acid, bis-isooctyl ester (technical), 250mg Price on request 10015.16-100MG 2-Hexadecanone, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 18787-63-8 Price on request 2015.12-100-IO 2,3',4,4',5,5'-Hexachlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 52663-72-6 Price on request