EPA Method 502.1 - Liquids Back Catalog number: 30008 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0207.22-200-T Benzo[a]tetracene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 226-88-0 Price on request 59476 Sodium Carbonate (Na2CO3) Price on request DTCEP Tris(2-chloroethyl) phosphate-d12, 1.2ml x 50ug/ml, toluene Price on request