Thermometer Calibration Procedure Kansas State

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Thermometer calibration procedure kansas state. National institute of standards and technology good measurement practice. Accurate thermometers can be used as a reference thermometer ex. In calibration labs like the a2la accredited thermoworks calibration laboratory in american fork utah technicians use industrial black bodies like the ir 500 portable ir calibrator to calibrate infrared thermometers. Nbs handbook 145 1986 handbook for the quality assurance of metrological measurements by john k.

This is an especially important consideration when bringing a thermometer in from the outside. Boyle department of animal sciences and industry kansas state university weber hall manhattan ks 66506 kansas state university agricultural experiment station and cooperative extension service mf 2439 january 2000. 9 0 sample handling and storage. National institute of standards and technology nist.

In some critical applications calibration against a certified. Record the results using actual values on the thermometer calibration log along with the date and initials of the person performing the calibration procedure. Thermometers that cannot be easily calibrated through direct immersion in either. Boyle ph d associate professor kansas state university agricultural experiment station and cooperative extension service temperature is a critical measurement for ensuring the safety and quality of many food products.

Thermometer calibration guide nancy c. Thermometers that have been adjusted for 3 consecutive months will be replaced. Not applicable 10 0 procedure and analysis. 10 1 annual thermometer calibration reports for nist traceable thermometers sections 7 1 7 2 and 7 3 are stored in the thermometers calibration certificates.

Infrared thermometers can be calibrated for accuracy just like other thermometers. In most applications a thermometer should be within 1 f or 0 5 c when compared to the reference thermometer used for calibration. Before the calibration the infrared thermometer should be allowed enough time to reach the temperature of the laboratory typically 15 minutes. Traceable thermometers are certified annually by a contractor outside of the opp microbiology laboratory.

Properly calibrating an infrared thermometer. Flores n boyle e thermometer calibration guide kansas state university january 2000. Capital health environmental public health services operational standards and procedures sf24. Taylor and henry v.

Hb 145 was developed as a source of calibration procedures for weights and measures laboratories and covered mass length and volume calibrations for field. Oppermann is out of print and the majority of content has been updated and published in the publications noted below. 2 1 5 nbs monograph 174 thermometer calibration.