EPA Method 502.2 Surrogate Standard Back Catalog number: 91704 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11698.12-100-IO 2,3,4',5-Tetrachlorobiphenyl,100 µg/mL,isooctane,1mL, Price on request PN-13S 1,2,3-Trichloronaphthalene, 1.2ml x 50ug/ml, nonane Price on request 3590.15-K-IO Mono-n-hexyl phthalate, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 24539-57-9 Price on request