EPA Method 8260B Surrogate Standard Back Catalog number: 23002 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10009.4-5ML Butanal, neat, Solvent-neat, Unit 5mL, # of units-1, Cas.no. 123-72-8 Price on request 685719 4-Bromophenylurea, 100µg/ml in Acetonitrile, 1ml Price on request 677053 Flufenamic acid, 100mg Price on request