EPA Method 8260B Internal Standard Back Catalog number: 22213 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended C10655501 Bisphenol A D16, certified, 50mg Price on request 1277.36-100-AN 2,3,7,8,12,13,17,18-Octaethylporphine, 100µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 2683-82-1 Price on request 8466.3-100-CY Ethylenethiourea Price on request