Thermometer Calibration Procedure Nist

Calibration methods and procedures should be openly documented.

Thermometer calibration procedure nist. There are a variety of commercial temperature monitoring devices available. Whether monitoring temperatures at receiving throughout production or final product storage and distribution thermometer calibration is. Taylor and henry v. 2 1 5 nbs monograph 174 thermometer calibration.

Oppermann is out of print and the majority of content has been updated and published in the publications noted below. Place certified calibrated thermometer and thermometer to be calibrated in a water bath. Uncertainties of calibration should be clearly stated. 2 1 7 nist ir 5341 assessment of uncertainties of liquid in glass thermometer calibrations at the national.

Procedures and examples are given for visually inspecting a thermometer using an ice point for a single point recalibration and determining uncertainties for thermometers with a single point recalibration. A model for state calibration laboratories 6 2 1 6 nist special publication 819 a procedure for the effective recalibration of liquid in glass thermometers j a. Obtain the most accurate readings possible with these thermometers that include a calibration certificate traceable to nist that states they ve passed a test to fall within 0 5 f accuracy. The metrological traceability established with the initial calibration.

Hb 145 was developed as a source of calibration procedures for weights and measures laboratories and covered mass length and volume calibrations for field. Heat bath to desired range. Bulb volume change ice bath ice point its 90 liquid in glass thermometer recalibration thermometer. Nbs handbook 145 1986 handbook for the quality assurance of metrological measurements by john k.

There are several factors relevant to evidence of traceability from the thermometer manufacturer vendor. Any mention or image of commercial products within nist web pages is for information only. Thermometer h 2610 7c 2 degrees c to 300 degrees c nist certified. Temperature is a critical measurement for ensuring the safety and quality of many food products.

A procedure for the effective recalibration of liquid in glass thermometers author. It does not imply recommendation or endorsement by nist. Nist does not monitor claims of traceability. If a certain type of thermometer displays more than occasional verification failures you may need to change either the procedure for handling the thermometer or the type of thermometer you use.

Thermometer h 2610 12c 20 degrees c to 102 degrees c nist certified.