Spiking Standard 3 Back Catalog number: 53072 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 63056 2,3,3',4'-Tetrachlorobiphenyl (56) Price on request L20545000AL Benzo(a)anthracene, 10µg/ml in Acetonitrile, 10ml Price on request 79490 Dioxathion Price on request