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Publication of BE494875ApublicationCriticalpatent/BE494875A/xx
G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G01N7/00—Analysing materials by measuring the pressure or volume of a gas or vapour
G01N7/10—Analysing materials by measuring the pressure or volume of a gas or vapour by allowing diffusion of components through a porous wall and measuring a pressure or volume difference
