Thermometer Calibration Procedure

Traceable thermometers are certified annually by a contractor outside of the opp microbiology laboratory.

Thermometer calibration procedure.

Add a little clean water until the glass is full and stir. Thermometers that cannot be easily calibrated through direct immersion in either. Use these two methods to get your thermometer back on the right track. Digital thermometer calibration procedure.

Thermometers that have been adjusted for 3 consecutive months will be replaced. Not applicable 10 0 procedure and analysis. A similar calibration procedure can be used for thermometers intended to be used in cold processes and products. Step 2 test your thermometer.

Learn how to test a thermometer s accuracy and how to calibrate a thermometer using two methods. 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. First there are those that have a nut or a screw for calibration. The first is the freezing point method.

This is an especially important consideration when bringing a thermometer in from the outside. Materials necessary to calibrate a thermometer for cold. 5 1 2 take a 1000 ml beaker filled with about 850 ml of silicon oil. 9 0 sample handling and storage.

5 1 3 put the beaker in an oil bath fitted with a stirrer. For this particular type you have to. Thermometer calibration for use in cold process and products ice water method an easy way to calibrate your thermometer is to put it in ice water and adjusting it to read. Taylor and henry v.

Use water for 0 0 c and silicon oil for the temperature above 50 c. An ice water bath and a boiling water bath. The thermometers will vary but the basic concept is the same. Before the calibration the infrared thermometer should be allowed enough time to reach the temperature of the laboratory typically 15 minutes.

Nbs handbook 145 1986 handbook for the quality assurance of metrological measurements by john k. Different digital thermometers have different methods for the purpose of calibration. Here s a useful video on the calibration process. Hb 145 was developed as a source of calibration procedures for weights and measures laboratories and covered mass length and volume calibrations for field.

The stirrer shall be dipped in the beaker. 5 1 calibration procedure 5 1 1 the thermometer for calibration shall be mercury in glass type. Oppermann is out of print and the majority of content has been updated and published in the publications noted below.