NEPHOS: Generating Traceable VOC and BTEX Gas Standards from a Liquid How a liquid-to-gas mixer is transforming the calibration of volatile organic compound analysers 1. The VOC and BTEX Calibration Challenge Volatile organic compounds (VOCs), and in particular the BTEX group (benzene, toluene, ethylbenzene and xylenes), are among the most closely monitored air pollutants worldwide.

NEW PRODUCT  ·  MAY 2026 Alytech Launches ZEPHYR II: The Next Generation Smart Gas Diluter from GasMix™ Alytech is proud to announce the launch of ZEPHYR II, the next generation of the GasMix™ smart gas diluter with two channels. ZEPHYR II is the first ZEPHYR to run AlySoft, the unified software platform behind every GasMix™

How Modern Gas Mixers Achieve Reliable, Defensible Accuracy By Laurent Courthaudon, Founder Gas mixing specialist with decades of field experience designing precision blending systems for regulated industries. For decades, the challenge in gas mixing has not been finding capable hardware. Mass flow controllers have long been able to meter gas with impressive precision. The challenge

Why MFC Flexibility is Redefining Modern Metrology 1. Fundamental Operating Principles: Stability vs. Agility The Sonic Nozzle (Fixed Geometry): This technology generates mass flow by accelerating gas to the speed of sound at a fixed orifice (choked flow). While mechanically elegant, it is inherently discrete; flow is locked into fixed hardware steps, requiring physical manifold

NIST Traceable Certified Value: What It Means and Why It Matters for Gas Calibration If you work in gas analysis, environmental monitoring, or laboratory calibration, you have likely encountered the term NIST traceable certified value. But what does it actually mean — and why does it matter for the accuracy and legal defensibility of your measurements?