ITS-90 temperature standards

The defining instruments of the ITS-90 (International Temperature Scale of 1990) are Standard Platinum Resistance Thermometers (SPRTs) and ITS-90 fixed-point cells. SPRTs are calibrated in fixed-point cells to provide the highest possible temperature accuracy. Primary standards offered by Fluke Calibration include: long-stem SPRTs; capsule SPRTs; triple point of water cells; metal fixed-point cells; maintenance baths and maintenance furnaces for fixed-point cells; standard resistors.




Standard platinum resistance thermometers

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Maintenance apparatus

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Liquid nitrogen comparison calibrator

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Resistance bridges

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Standard resistors

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ITS-90 Fixed-point cells

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