EPA Method 8270 PAH Standard Back Catalog number: 92263 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1848.12-1G 2,6-Naphthalenedicarboxylic acid, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 1141-38-4 Price on request 673844 D9-Chlormequat Chloride, 100 µg/ml , Deuterium ox Price on request 51061 ASTM D-4815 Calibration Mix #4 Price on request