At Calgaz, we take safety and quality seriously. We ensure to consistently deliver on the quality we promise and our the quality that our customers demand. Calgaz gas mixtures and regulators are manufactured, fully tested and shipped from our state-of-the-art production facility in Cambridge, Maryland, USA and from our new facility in Stoke-on-Trent, UK.

Our USA plant received ISO 9001-2008 certification over 20 years ago.
We also received ISO 17025:2005 accreditation by the American Association for
Laboratory accreditation (A2LA) for:

• Ethanol in Nitrogen by FTIR Spectoscopy (A3-CGZ-LAB-0059-P)
• Ethanol in Nitrogen by Infra-Red Spectroscopy (A3-CGZ-LAB-0013-P)
• Hydrogen Sulfide and Carbon Monoxide by Electrochemical Cell (A23-CGZ-LAB-0018-P)
• Oxygen by Paramagnetic Analyzer (A3-CGZ-LAB-001-P) (Stoke ISO 9001-2008 certification)

Our quality assurance claims are backed by:
• Years of research and development resulting in proprietary preparation and fillingprocesses designed around Calgaz cylinders and valves
• Long-term stability studies based on the preparation and filling processes wecurrently use
• Significant financial investment in facility upgrades and the addition of sophisticated equipment at the manufacturing level which have automatedsections of our plant


Calgaz Products

Gas Mixtures
• All gas mixtures are made gravimetrically
• All gas mixtures are NIST Weight Traceable and fully traceable back to the original raw materials
• All master blends are analyzed 100%
• Lot analysis on transfilled cylinders

• Cylinders are leak checked with mass spectrometer
• Valves used in our Calgaz 34 and Calgaz 58 cylinders are our design and are manufactured to our specifications
• All cylinders are pressure checked
• All lots of cylinders are traceable by lab database



• All regulators are designed and built in-house
• Rigid quality control of all supplied machined parts
• Statistical Process Control in place
• 100% of regulators are function tested
• All regulators are leak checked