What Does NDIR Stand For?

NDIR stands for Nondispersive Infrared Analysis

NDIR, or Nondispersive Infrared Analysis, is an analytical technique used to measure the concentration of specific gases in a mixture by detecting the absorption of infrared light. This method utilizes a light source that emits infrared wavelengths, which pass through a sample chamber containing the gas. The amount of light absorbed at specific wavelengths correlates directly with the concentration of the target gas, allowing for accurate and rapid measurement. NDIR is widely employed in applications such as environmental monitoring, industrial process control, and emissions testing due to its reliability and sensitivity.