Thermometer Calibration Procedure

The first is the freezing point method.

Thermometer calibration procedure.

Taylor and henry v. For this particular type you have to. 9 0 sample handling and storage. Oppermann is out of print and the majority of content has been updated and published in the publications noted below.

The thermometers will vary but the basic concept is the same. 5 1 2 take a 1000 ml beaker filled with about 850 ml of silicon oil. Traceable thermometers are certified annually by a contractor outside of the opp microbiology laboratory. First there are those that have a nut or a screw for 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. A similar calibration procedure can be used for thermometers intended to be used in cold processes and products. This is an especially important consideration when bringing a thermometer in from the outside. An ice water bath and a boiling water bath.

The stirrer shall be dipped in the beaker. Finally thermometers require regular calibration daily or weekly when they are used frequently. Before the calibration the infrared thermometer should be allowed enough time to reach the temperature of the laboratory typically 15 minutes. Learn how to test a thermometer s accuracy and how to calibrate a thermometer using two methods.

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. Add a little clean water until the glass is full and stir. Digital thermometer calibration procedure. Different digital thermometers have different methods for the purpose of calibration.

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. 5 1 calibration procedure 5 1 1 the thermometer for calibration shall be mercury in glass type. Materials necessary to calibrate a thermometer for cold. Use these two methods to get your thermometer back on the right track.

5 1 3 put the beaker in an oil bath fitted with a stirrer. Here s a useful video on the calibration process. Thermometers that cannot be easily calibrated through direct immersion in either. Step 2 test your thermometer.

Record the results using actual values on the thermometer calibration log along with the date and initials of the person performing the calibration procedure. Nbs handbook 145 1986 handbook for the quality assurance of metrological measurements by john k. Not applicable 10 0 procedure and analysis.