EPA Method 8240A Internal Standard Back Catalog number: 22003 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8461.12 Baythion, , Solvent-, Unit , # of units-, Cas.no. Price on request MA9064 80.000 µS/cm conductivity solution (230mL) Price on request 677271 13C3-AHD, 10mg Price on request