PAH Standard Back Catalog number: 91531 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 678247 Butachlor, 100 µg/ml, Methanol, 1ml Price on request 94422 EPA Method 8270 Additionals Price on request 52105 Inorganic Disinfection By-Products (ClO3-/ClO2-), 1000µg/ml in Water, 100ml Price on request