Thermometer Calibration Procedure Laboratory

A similar calibration procedure can be used for thermometers intended to be used in cold processes and products.

Thermometer calibration procedure laboratory.

Heat the beaker of sand with thermometers in an oven to desired range. Thermometers that have been adjusted for 3 consecutive months will be replaced. Nonadjustable thermometers will be removed from use until they have been professionally serviced. Meeting the criteria in this procedure demonstrates.

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. Performance calibration and verification of laboratory testing equipment to ensure compliance with iso iec 17025 2017 and aoac requirements. Refer to the point check calibration of laboratory thermometers record book to determine which thermometers excluding vendor calibrated equipment in attachment 1 are currently in use in the laboratory. Before the calibration the infrared thermometer should be allowed enough time to reach the temperature of the laboratory typically 15 minutes.

5 2 10 standard thermometers shall be sent for re standardization based on the calibration certificate given by the approved laboratory. Take readings from calibrated thermometer and thermometer to be calibrated at selected points and compare the readings. This is an especially important consideration when bringing a thermometer in from the outside. 5 2 9 all thermometers shall be standardized once a year and calibration record maintained annexure ii.

Hb 145 was developed as a source of calibration procedures for weights and measures laboratories and covered mass length and volume calibrations for field. Thermometers in the instrument being monitored until the de ionized water or ethanol reaches the temperature of interest. Oppermann is out of print and the majority of content has been updated and published in the publications noted below. 5 2 8 the thermometer shall have an identification number and standardization date labeled on it.

Taylor and henry v. Procedure and analysis 12 1 vendor calibration a. Place certified calibrated thermometer and thermometer to be calibrated in a beaker of sand. Materials necessary to calibrate a thermometer for cold.

North carolina state laboratory of public health laboratory improvement unit june 2018 vol. Nbs handbook 145 1986 handbook for the quality assurance of metrological measurements by john k. Refer to attachment 1 for inventory of thermometers requiring vendor calibration. Record the results using actual values on the thermometer calibration log along with the date and initials of the person performing the calibration procedure.