"Dioxin-Like" PCBs Calibration Kit , 7 x 500ul, nonane Back Catalog number: WP-CVS Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 52337 Mixed Calibration Standard 3 Price on request 98528 5-Nitro-o-toluidine Price on request 677732 2-Isopropylphenol, 500mg Price on request