Method 508 Calibration Standard Back Catalog number: 94877 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 678103 Propetamphos, 100 µg/ml, Acetonitrile, 1ml Price on request DD-124679-S 1,2,4,6,7,9-Hexachlorodibenzo-p-dioxin , 1.2ml x 50ug/ml, nonane Price on request 71616 Cycloheptane Price on request