NPL produces an extensive range of gas calibration mixtures through a chain of direct comparisons to the national measurement standards.

Further information is available on NPL gas standards:

• Gas standards for calibrating air quality monitors
• Gas standards for calibrating stack emission monitors
• Gas standards for calibrating vehicle emission monitors
• High accuracy gas standards for ambient atmospheric monitoring
• Standard mixtures of volatile organic compounds

• Natural gas standards  |  Natural gas odorant standards   |  download flyer
• Refinery gas standards  |  download flyer
• LPG, LNG and other liquid hydrocarbon standard mixtures
• Analysis of non-conventional fuel gases
• Hydrogen purity analysis

• Gas standards for calibrating breath alcohol analysers
• Gas standards for water vapour
• Gas standards for olfactometry
• Gas standards for medical diagnostic and leak detection monitors
• Gas standards for noble gases
• Gas standards for explosive concentration monitors
• High purity gas analysis

• Certification of gas mixtures
• Proficiency testing schemes
• Gas metrology software
• Gas Standards available from NPL
• Accurate, nationally traceable gas calibration standards

Larger cylinders with no rental costs

NPL's Gas Standards are supplied in 10 litre cylinders, filled in excess of 100 bar. The cylinders are sold, eliminating cylinder rental costs. This proves financially beneficial when customers require gas standards over significant periods of time.

Contact Us

If you would like further information or have a specific enquiry, please do not hesitate to contact us.