EPA Method 515.1 Internal Standard Back Catalog number: 31023 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 94761 2,4-Diaminotoluene Price on request 70786 Permethrin (mix isomers), 1000μg/ml in MeOH, 1ml Price on request 9413.18-10MG Mianserin hydrochloride, 10mg Price on request