Calibration Standard Mix 4 Back Catalog number: 52013 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1653.13-100-IO 1,1,1,3-Tetrachlorotridecane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 67095-50-5 Price on request 674734 Fenthion-oxon, 100 µg/ml, Acetonitrile, 1ml Price on request 95064 USEPA 521MRL QC Standard - Nitrosoamine Mix Price on request