EPA Method 526 Surrogate Standard Back Catalog number: 93187 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 96740 Chlorinated Pesticides Price on request 10130.11-150-IO 2,3,4-Trimethylbenzothiophene, 150µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 80421-98-3 Price on request CA12985500 Disulfoton-sulfoxide, certified, 50mg Price on request