calibration gas and equipment


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We need to calibrate and test some temperature measurement devices (-30 celsius up to 80 celsius). Please advise the best gas we need to buy to make calibration and the temperature measurement equipment we best can buy to use at refernce

Thanks in advanved for your help!!

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the best solution for u is to use cryogenic liquids (like N2, O2) which can reach as low as -196 Deg C for Nitrogen & -183 Deg C for oxygen.

If u have an utility plant then the refrigeration liquid can be used as standard.

for the temperature bath I suggest u go for HART dry calibrator.