Thermometer Calibration Procedure

5 1 2 take a 1000 ml beaker filled with about 850 ml of silicon oil.

Thermometer calibration procedure. First there are those that have a nut or a screw for calibration. The first is the freezing point method. For this particular type you have to. Hb 145 was developed as a source of calibration procedures for weights and measures laboratories and covered mass length and volume calibrations for field.

Digital thermometer calibration procedure. Use water for 0 0 c and silicon oil for the temperature above 50 c. Finally thermometers require regular calibration daily or weekly when they are used frequently. Nbs handbook 145 1986 handbook for the quality assurance of metrological measurements by john k.

Step 2 test your thermometer. Traceable thermometers are certified annually by a contractor outside of the opp microbiology laboratory. 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. Taylor and henry v.

Learn how to test a thermometer s accuracy and how to calibrate a thermometer using two methods. Different digital thermometers have different methods for the purpose of calibration. Materials necessary to calibrate a thermometer for cold. 5 1 3 put the beaker in an oil bath fitted with a stirrer.

9 0 sample handling and storage. Here s a useful video on the calibration process. The stirrer shall be dipped in the beaker. Not applicable 10 0 procedure and analysis.

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. A similar calibration procedure can be used for thermometers intended to be used in cold processes and products. Use these two methods to get your thermometer back on the right track. Thermometers that cannot be easily calibrated through direct immersion in either.

Fill a glass with crushed ice. Oppermann is out of print and the majority of content has been updated and published in the publications noted below. Thermometers that have been adjusted for 3 consecutive months will be replaced. Add a little clean water until the glass is full and stir.

This is an especially important consideration when bringing a thermometer in from the outside. 5 1 calibration procedure 5 1 1 the thermometer for calibration shall be mercury in glass type. The thermometers will vary but the basic concept is the same.