EPA Method 548.1 Internal Standard Back Catalog number: 30078 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2271.4-1ML Ethyl acetate, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 141-78-6 Price on request 50257 KHP Price on request 53071 Spiking Standard 5 Price on request