EPA Method 502.2/524.2 - Liquids Back Catalog number: 35071 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11009.22-100MG Diisoheptyl phthalate (mixture of C7 isomers),neat,neat,100mg, Price on request 2263.12-100-IO 2,2',5-Trichlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 37680-65-2 Price on request 59620 Total Residual Free Chlorine Price on request