"Dioxin-Like" PCBs Calibration Kit , 7 x 500ul, nonane Back Catalog number: WP-CVS Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended PN-42S 1,3,5,7-Tetrachloronaphthalene, 1.2mL x 50ug/mL, nonane Price on request 675435 2,5-Dichlorobenzoic acid, 250mg Price on request 50635 ICP Mix #1 Price on request