Spiking Standard 4 Back Catalog number: 58651 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 19108 EPA Method 8120 - Chlorinated Hydrocarbons Price on request C16972720 Spectinomycin sulfate hydrate, certified, 0.1g Price on request 673304 Fluroxypyr-1-methylheptylester, 10.0 µg/ml, Aceto Price on request