EPA 1620 Standard 3 Back Catalog number: 52141 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended MDD-1234678 1,2,3,4,6,7,8-Heptachloro[13C12]dibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene Price on request 675101 n-Undecylbenzene, 100mg Price on request 15100-0505-100CY5 PCB No. 185, 100µg/ml in CY, 5ml Price on request