EPA Method 23 Calibration Kit, 5 ampoules, nonane Back Catalog number: EPA-23CS1-5 Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended DF-12378-S 1,2,3,7,8-Pentachlorodibenzofuran , 1.2ml x 50ug/ml, nonane Price on request 23004 EPA Method 8260B Surrogate Standard Price on request 72604 Sulfamethoxazole, 1000µg/ml in MeOH, 1ml Price on request