Thermometer Calibration Procedure

Add a little clean water until the glass is full and stir.

Thermometer calibration procedure.

Before the calibration the infrared thermometer should be allowed enough time to reach the temperature of the laboratory typically 15 minutes. Thermometers that have been adjusted for 3 consecutive months will be replaced. The thermometers will vary but the basic concept is the same. Step 2 test your thermometer.

5 1 calibration procedure 5 1 1 the thermometer for calibration shall be mercury in glass type. Use these two methods to get your thermometer back on the right track. 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. 9 0 sample handling and storage.

An ice water bath and a boiling water bath. Record the results using actual values on the thermometer calibration log along with the date and initials of the person performing the calibration procedure. 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.

Thermometers that cannot be easily calibrated through direct immersion in either. Digital thermometer calibration procedure. The stirrer shall be dipped in the beaker. Taylor and henry v.

Different digital thermometers have different methods for the purpose of calibration. A similar calibration procedure can be used for thermometers intended to be used in cold processes and products. Not applicable 10 0 procedure and analysis. Nbs handbook 145 1986 handbook for the quality assurance of metrological measurements by john k.

Traceable thermometers are certified annually by a contractor outside of the opp microbiology laboratory. The first is the freezing point method. Here s a useful video on the calibration process. Use water for 0 0 c and silicon oil for the temperature above 50 c.

Oppermann is out of print and the majority of content has been updated and published in the publications noted below. This is an especially important consideration when bringing a thermometer in from the outside. 5 1 3 put the beaker in an oil bath fitted with a stirrer. 5 1 2 take a 1000 ml beaker filled with about 850 ml of silicon oil.

Materials necessary to calibrate a thermometer for cold. Fill a glass with crushed ice. Hb 145 was developed as a source of calibration procedures for weights and measures laboratories and covered mass length and volume calibrations for field.