Gas analyser
Ambient air monitoring plays a critical role in measuring gases that can affect environmental quality, workplace conditions and public safety. Monitoring stations may measure gases such as NO₂, CO, CO₂, VOCs, SO₂, H₂S, oxygen and nitrogen across a wide range of concentrations. As sensor and analyser technology becomes increasingly sensitive, the accuracy of the calibration standard becomes even more important. Without reliable calibration, even advanced monitoring equipment can produce questionable exposure or concentration results.
Calibration can be especially challenging when reactive gases are involved. Static cylinder mixtures may experience losses to active cylinder surfaces, potentially introducing offsets or inaccurate calibrations. Multi-point verification can also require dilution or additional equipment. For dependable air monitoring, calibration gases should closely represent the concentrations and gas combinations encountered in the actual environment.
KIN-TEK Analytical provides flexible solutions for both trace-level and per cent-level calibration. Trace Source™ Permeation Tubes, used with KIN-TEK Gas Standard Generators, create accurate, on-demand trace gas standards traceable to the National Institute of Standards and Technology (NIST). KIN-TEK offers calibration standards for more than 550 compounds.
For higher concentrations and complex mixtures, the FlexMixer™ Multi-Gas Blending System dynamically blends gases to produce controlled high-ppm to per cent-level mixtures. It can also automate multi-point calibration for analysers, sensors and detectors.
By combining trace gas generation with dynamic gas blending, KIN-TEK provides the calibration tools needed to help ensure air-monitoring data is accurate, repeatable and meaningful.
Editorial adapted from KIN-TEK Analytical application note “AMBIENT AIR MONITORING –
Dynamically Blending % Level Gases for Calibration” by Danet M. Vrazel.
IET 36.3 May
Product directory
