ASTM D-4815 Calibration Mix #2A Back Catalog number: 51214 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended DF-1279-S 1,2,7,9-Tetrachlorodibenzofuran, 1.2ml x 50ug/ml, nonane Price on request 81422 Ronnel (Fenchlorphos) Price on request 1142.22-K-IO n-Docosane, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 629-97-0 Price on request