PCB No. 4, certified, 25mg Back Catalog number: C20000400 Availability: In the manufacturer's stock Price on request - + Recommended S-4141-75-IO Nitrogen Calibration Set-High Boiling Solvents Units: 1x1mL ampoules or 10mL screw-capped bottle Nitrogen introduced using Carbazole Catalogue No. Concentration Matrix: isooctane mg/kg (ppm) S-4141-0 Blank S-4141-03 Price on request 673213 Butocarboxim, 100 µg/ml, Acetonitrile, 5ml Price on request 71662 2,3,5-Trichloroanisole Price on request