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Calibration Gas

A calibration gas is a reference gas or gas mixture used as comparative standard in the calibration of analytical instruments, like gas analysers or gas detectors. Therefore, a calibration gas has to be of a precisely defined nature or composition, like zero gas or span gas, for example 500 ppm carbon monoxide in nitrogen.



Preparation tolerance is the concentration range that includes minor component and concentration. PT is measured in range of concentration. It can also be referred to as blending tolerance. For instance, a calibration gas of 500 ppm CO balance nitrogen having PT +/- 10% contains between 450 ppm and 550 ppm. Preparation tolerance can be minimized by using latest technologies for manufacturing such gases.

Features :

  • High purity
  • Odorless
  • Colorless