QC-50 Calibration Gas QuickCheck System $405.00 The QC-50 Calibration Gas QuickCheck System utilizes revolutionary technology allowing a functional check (or Bump Test) as needed or required by law. The unique QuickCheck Vials (QCV) utilize a stable, safe and reliable delivery method allowing ease of shipment, storage and use. The QC-50 is currently available for ammonia, hexane, hydrogen chloride and toluene. Select options This product has multiple variants. The options may be chosen on the product page