Calibration and testing of : thermometers, balances, scales, dynamometers, pH meters, temperature recorders, gauges and medical tensiometers. Melting point machines. Manometers. Testing of : stoves, refrigerators and isotherms areas. Studies of stability and uniformity of isothermal media (steam sterilizers, baths, rooms, buildings, cabins). Studies of stability and uniformity: thermal cameras. Metrological advice.