Custom Standard Back Catalog number: 50407 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 79261 Pentachlorophenol Price on request 93905 Aliphatic Hydrocarbon Calibration #3 Price on request 10635.12-50-NN 1,2,3,7,8,9-Hexachlorodibenzofuran ,50 µg/mL,n-nonane,1mL, Price on request