GFAA Initial Calibration Verification Back Catalog number: 53315 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended D-404N 2,3,7,8-Tetrachlorodibenzo-p-dioxin, 1mg Price on request 73387 Chlorthiophos Price on request 2179.30-50-IO 17 alpha(H),21 alpha(H)-30-Nor-29-methylhopane, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. Price on request