EPA Method 552.1 - Surrogate Standard Back Catalog number: 31057 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2563.4-5ML Diethylene glycol, neat, Solvent-neat, Unit 5mL, # of units-1, Cas.no. 111-46-6 Price on request DF-0-S Dibenzofuran, 1.2ml x 50ug/ml, toluene Price on request 681388 Quinmerac, 100mg Price on request