Acids Calibration Level 2 Back Catalog number: 94839 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended DF-1368-S 1,3,6,8-Tetrachlorodibenzofuran, 1.2ml x 50ug/ml, nonane Price on request 681379 Gemfibrozil, 250mg Price on request 675377 Cyphenothrin, 100mg Price on request