EPA Method 551.1 Surrogate Standard Back Catalog number: 30102 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended N674502 DL-Norepinephrine-d6 Hydrochloride, 85%, 2,5mg Price on request 0277.22-10-AN Indeno[1,2,3-cd]pyrene, 10µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 193-39-5 Price on request 681921 Pentachlorothioanisole, 100 µg/ml, Acetonitrile, Price on request