There is no need to maintain the liquid level, and continuous measurement of free space changes is possible even during gas adsorption measurements!
The free space (dead volume) is not a geometric volume, but a convenient volume for calculating the amount of adsorption. To achieve physical adsorption, when the sample tube is cooled with a refrigerant such as liquid nitrogen, two temperature regions are created, and the gas density in this cooling section is affected by the cooling temperature and the changes in the level of the refrigerant during measurement. We provide detailed information on our website, so please take a look. *For more details, please refer to the related links or feel free to contact us.
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We are a comprehensive manufacturer of powder and particle property measurement equipment. As professionals in "powder and particles," we consistently provide leading technology and services in the industry.