Precision and Recovery Stock Solution, 1.2ml, nonane Back Catalog number: EPA-1613PAR Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended DF-SS-A20 Mass-Labelled PCDD Sampling Spike Solution, 1.2ml x 20ng/ml, nonane Price on request 59252 Metals Mix Price on request DF-1349-S 1,3,4,9-Tetrachlorodibenzofuran, 1.2ml x 50ug/ml, nonane Price on request