Thermometry and Humidity Calibrations
The Temperature and Humidity Group provides calibration, certification, and test services for thermometric artifacts over the range from 0.65 K to 2,100 °C and humidity artifacts over the range from –100 °C to 85 °C. Additionally, special services are available for prototype artifacts, non-standard artifacts and proficiency tests.
Specific information regarding each service is accessed through the links given below:
Thermometry Calibrations
♦ Industrial thermometers
– resistance or thermocouple probes
– digital readouts with probes
♦ Liquid-in-glass thermometers
– mercury -- DISCONTINUED 1-Mar-2011
– organic
♦ Thermocouples
– base metal
– noble metal
– pure metal
♦ ITS-90 defining artifacts (Ar TP to Ag FP)
– standard platinum resistance thermometers
– fixed-point cell
♦ Cryogenic resistance thermometers (0.65 K to 165 K)
– capsule standard platinum resistance thermometers
– rhodium-iron
– germanium
– platinum cobalt
– zirconium nitride, ruthenia
♦ Special tests for thermometry
– prototype equipment
– bridge certification
– proficiency testing
Humidity Calibrations
♦ Trace moisture hygrometers
♦ Hygrometers
– chilled mirror
– electric
– electrolytic
– optical spectrographic
– infrared
– aspirated
– pneumatic bridge
– RH probes
How to Arrange a Calibration
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Contact the staff member in charge of the calibration service for your artifact with any technical or calibration cost questions.
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Calibrations are performed on a first come first serve basis.
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If you are sending an SPRT for calibration, please measure the triple point of water resistance R(TPW) before shipping.
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Ship your artifact with a copy of the purchase order. Use a sturdy box in which we can return the calibrated instrument.
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The purchase order my be sent to contact by e-mail, fax, or mail. Please include the following information:
- Service ID for the calibration
- Model and serial number of your artifact
- Customer contact name, address, phone, and email
- Return shipping method (e.g., shipping account number)
- R(TPW) value (if applicable, see # 3 above)
General information regarding NIST calibration services may be found on the NIST Technology Services Calibration Webpage
