Tetrachloro-m-xylene Back Catalog number: 79233 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended S-4140-1-IO Nitrogen Calibration Set-Low Boiling Solvents Units: 1x1mL ampoules or 10mL screw-capped bottle Nitrogen introduced using Pyridine Catalogue No. Concentration Matrix: isooctane mg/kg (ppm) S-4140-0 Blank S-4140-03 0.3 Price on request N496909 4-Nitrophenol-13C6, 1mg Price on request 680987 Norflurazon, 10 µg/ml, Acetonitrile, 10ml Price on request