Common methods of temperature calibration include the ice point method, boiling point method, and comparison method. The ice point method uses the 0°C property of an ice-water mixture for calibration and is suitable for low-temperature range devices; the boiling point method uses the boiling point of water (typically 100°C) for calibration and is suitable for high-temperature range devices; the comparison method involves comparing the device to be calibrated with a standard device of known accuracy and is suitable for multi-point calibration and high-precision requirements.

Additionally, modern calibration technologies include dry block calibrators, constant temperature baths, and portable calibrators. Dry block calibrators are suitable for on-site calibration, constant temperature baths provide a stable temperature environment, and portable calibrators are ideal for mobile use. Choosing the right methods and technologies can improve calibration efficiency and accuracy.