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Automotive | Air Liquide

What is the current state of engine emissions testing regulations?

Automotive manufacturers need to perform more and more rigorous engine emissions testing on new vehicles. They are forced to monitor and measure these emissions by national authorities, such as the American (EPA) and the European directives (commonly called Euro) being the most common. As the manufacturing and sales of automobiles are global, there is an increasing need to comply with both legislations, which impose specific requirements.

What is the role of specialty gases in engine emissions testing?

New engine development for a vehicle takes four to five years, and costs billions of Euros. During this development, phase measurements of the engine emissions are critical for the R&D teams. Before the engine can be used in a car, it must go through an intensive ‘Type Approval’ process to ensure emissions are below the legal limits.  

Manufacturers, their suppliers and testing centers use dedicated analytical equipment that require specialty gases to function. These gases guarantee ultra-high-purity and precision to ensure accurate analyses and reliable precise analytical results.

What does Air Liquide offer for engine emissions testing?

Air Liquide’s offer encompasses specialty gases with dual-compliance and certification to EPA and EU standards. In fact, Air Liquide is the first and only gas supplier to propose dual-compliance products that conform to regulations in both in the US and the EU.

Our products are part of the ALPHAGAZ™ range, Air Liquide’s premium brand of specialty gases for analytical applications. The offer features a complete, yet simple range of the most commonly requested pure gases and mixtures for engine emissions testing. We offer ALPHAGAZ™ AUTO, which are pure gases like ultra-pure air and nitrogen for zero and purge, as well as ALPHAGAZ™ Mix products for calibration.

Specialty gases are used at all stages, from engine design and development to “go-to-market approval”, including for on-road or real driving emissions (RDE) and Portable Emissions Measurement Systems (PEMS) testing.

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