EPA Method 551.1 Standard Back Catalog number: 94519 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11505.2-1ML 1,1,1-Trichloroethane (stabilized with 5% 1,4-dioxane), 93.5%, in ampoule,neat,neat,1mL, Price on request 2956.2-100-IO Methamidophos-d6 (dimethyl-d6), 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1219799-41-3 Price on request 92841 Dibenzothiophene Price on request