EPA Method 525 - PAH Standard Back Catalog number: 19062 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended MPN-73 1,2,3,4,5,6,7-Heptachloro(13C10)naphthalene, 1.2mL x 50ug/mL, nonane Price on request 70274 1,2,4,5-Tetrachlorobenzene, 1000µg/ml in MeOH, 1ml Price on request 56074 Tungsten (W) Price on request