EPA Method 8140/8141 Analytes Back Catalog number: 81400 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 55098 SDWA UV 254 Absorbance/ DOC Price on request 59284 Potassium (K) Price on request 0045.20-10MG 1-Nitroperylene, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 35337-20-3 Price on request