WP PCBs in Water Back Catalog number: 38091 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 97742 EPA Method 8270 PAH Standard Price on request 1837.8-1G m-Toluic acid, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 99-04-7 Price on request 54342 Alkalinity as Calcium Carbonate Price on request