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Select a step where Air Liquide intervenes in your value chain.

Emissions monitoring

Air Liquide makes use of CEM DAILY STANDARDS™ for continuous emissions monitoring calibration gases, as well as our ALPHAGAZ™ brand pure gases engineered to help you accurately test and measure emissions monitoring analyzers. We also offer GMACS (Gas Manufacturer's Alternative Certified Standards) hydrogen chloride gas mixtures, an EPA-approved class of calibration standards specifically for monitoring HCl emissions at CEMS installations. In addition, our extensive inventory of gas handling and distribution equipment allows you to safely store, handle and deliver these gases to your applications.