EPA Method 502/524 Surrogate Standard #1 Back Catalog number: 30070 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 675814 Desmetryn, 100 µg/ml, Acetonitrile, 5ml Price on request 0029.22-200-T Pentaphene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 222-93-5 Price on request 2095.20-100MG Bis(2-n-butoxyethyl) phthalate, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 117-83-9 Price on request