Thermometer Calibration Procedure Laboratory

North carolina state laboratory of public health laboratory improvement unit june 2018 vol.

Thermometer calibration procedure laboratory.

Place certified calibrated thermometer and thermometer to be calibrated in a beaker of sand. Thermometers that have been adjusted for 3 consecutive months will be replaced. 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. 5 2 10 standard thermometers shall be sent for re standardization based on the calibration certificate given by the approved laboratory.

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. Heat the beaker of sand with thermometers in an oven to desired range. Procedure and analysis 12 1 vendor calibration a. 5 2 9 all thermometers shall be standardized once a year and calibration record maintained annexure ii.

Meeting the criteria in this procedure demonstrates. Nonadjustable thermometers will be removed from use until they have been professionally serviced. 14 issue 2 thermometers are one of the most common types of equipment in a laboratory but it is important. Taylor and henry v.

10 5 any difference in temperature readings between the nist traceable thermometer and the laboratory thermometer is recorded on the point check calibration of laboratory thermometers record form see 16 0. 5 2 8 the thermometer shall have an identification number and standardization date labeled on it. Refer to attachment 1 for inventory of thermometers requiring vendor calibration. Take readings from calibrated thermometer and thermometer to be calibrated at selected points and compare the readings.

Thermometer calibration procedure. A similar calibration procedure can be used for thermometers intended to be used in cold processes and products. Performance calibration and verification of laboratory testing equipment to ensure compliance with iso iec 17025 2017 and aoac requirements. Nbs handbook 145 1986 handbook for the quality assurance of metrological measurements by john k.

Oppermann is out of print and the majority of content has been updated and published in the publications noted below. Thermometers in the instrument being monitored until the de ionized water or ethanol reaches the temperature of interest.