EPA 1620 Standard 4 Back Catalog number: 53142 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 673393 Monolinuron, 100 µg/ml, Acetonitrile, 5ml Price on request 71460 2-Ethylanthracene Price on request 83556 Methyl isopropyl ketone-DNPH Price on request