EPA Method 551.1 Performance Check Soln Back Catalog number: 30114 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 686167 Bisphenol AF, 100mg Price on request 675842 Pirimicarb-desmethyl-formamido, 100 µg/ml, Aceton Price on request MDD-12479 1,2,4,7,9-Pentachloro[13C12]dibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene Price on request