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Car exhaustion pipe

Vehicle Emissions Testing

Experis® ultra-high purity gases and mixtures for high accuracy measurement of vehicle exhaust emissions

The Experis® specialty gases range from Air Products has been specially developed for the analytical user, and includes ultra-high-purity gases, gas mixtures and gas-handling equipment. Our unique BIP® technology offers the highest purity levels for use as zero gases and for instrumental analysis.

Air Products’ extensive range of calibration and accredited gas mixtures offer mixture stability, certification and traceability to meet the most demanding applications. To complement this offering, we can supply a high-quality range of gas-handling equipment which includes cylinder regulators, manifolds, valves and purge systems.

More Accurate Analysis

Greater sensitivity and lower limits of detection

Industry Compliance

Instrument and calibration gases compliant with the latest Euro 6 requirements

Reduced System Maintenance

BIP technology eliminates the requirement for external purifiers

ISO 17025 Accredited

Our ISO 17025 accreditation scope for calibration mixtures is optimised for the automotive industry


Advanced gas mixture filling techniques

Gas Mixture Stability Of Up To 10 Years

Cylinder treatment technologies endorsed by the world's leading gas metrology institutes


Robust measurement traceability to international standard


A wide range of standard compositions, plus rapid delivery of bespoke calibration mixtures to suit your analysis.

Ask the Expert

Expert Trish Lees
Trish Lees

Üzletfejlesztési szakember

What is the maximum number of components you can fit in an accredited mixture?

Air Products offers calibration gas mixtures containing all of the components NO, SO₂, CO and CO₂ in the same cylinder, certified by an ISO17025 accredited calibration laboratory.