calibration gas standard

Standard calibration gas is a kind of gas having homogeneous height, good stability and accurate measurement. It could be a single pure or high-purity gas, or multi-component mixed gases.
Calibration gas is main application is for calibrating instrument, calibrating meters, evaluating measurement, transmission of measurement standards and arbitration analysis etc. Standard calibration gas belongs to one of standard substances, which is also called gas standard material. Standard substance is a kind of measurement standard as well as measures of measurement in China's weighing and measures law. It has basic function like reiteration, save and values transfer.