Method and device for temperature calibration by means of benzoic acid freezing point temperature level ground

The invention belongs to the metering technology field, and concretely relates to a method for temperature calibration by means of a benzoic acid freezing point temperature level ground. The invention also relates to a device adopted by the above method. The method includes the steps of making a benzoic acid freezing point bottle and conducting temperature calibration. The device comprises a benzoic acid freezing point bottle and a benzoic acid freezing point reproduction storage device. The benzoic acid freezing point bottle and the benzoic acid freezing point reproduction storage device are combined together at about 122 DEG C to conduct temperature calibration by means of a benzoic acid freezing point temperature level ground. The beneficial effects of the invention are: firstly, the calibration accuracy is high, and secondly, good reliability is achieved. The method and the device are of practical significance in tracing a specific key temperature spot.