Carbonate content testing system and method

The invention relates to a carbonate content testing system and method which belongs to the technical field of rock and mineral test instruments, and solves the problems of low test result accuracy and low test efficiency of the existing test system and method. The test system comprises a gas generation device, a miscellaneous gas removal assembly, a vacuumizing assembly, a gas storage assembly and a liquid nitrogen box, the gas generation device, the miscellaneous gas removal assembly and the gas storage assembly are communicated through pipelines, and the vacuumizing assembly comprises a mechanical pump and a three-way valve. The three-way valve is arranged on a pipeline between the miscellaneous gas removing assembly and the gas storage assembly, and the three-way valve is connected with the mechanical pump through a pipeline. The gas storage assembly comprises a gas storage pipe and a sealing plug used for sealing the gas storage pipe, and the gas storage pipe is provided with a gas pressure detection ass