EPA Method 552.2 - Surrogate Standard Back Catalog number: 30108 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 79440 2,4-Diaminoanisole Price on request 2198.11-K-ME 2-Methyl-4-nitronaphthalene, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 13615-38-8 Price on request 72462 N,N-Diethylaniline Price on request