EPA Method 515 Herbicide Acids Back Catalog number: 93924 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 683673 Atropine, 100 µg/ml, Acetonitrile, 1ml Price on request 93156 2,3-Benzofluorene Price on request 673574 Ethoxyquin, 100 µg/ml, Ethyl acetate, 5ml Price on request