Calibration Standard 1 Back Catalog number: 52021 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10626.12-50-NN 1,2,3,7,8-Pentachlorodibenzo-p-dioxin,50 µg/mL,n-nonane,1mL, Price on request 71054 2,4,6-Trichloroaniline Price on request X9226 trans-Chlordane Price on request