EPA Method 508 Standard Back Catalog number: 92358 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2144.10-K-IO 2-sec-Butyl-4,6-dinitrophenol, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 88-85-7 Price on request 1725.30-10MG Dibenzo[a,l]pentacene ('1,2:8,9-Dibenzopentacene), neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 227-09-8 Price on request 54010 Orthophosphate (as PO4) Price on request