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Abstract:
The adsorptive properties of four charcoals have been examined in relation to their value as adsorbents in filters attached to an anaesthetic trolley. Data for four anaesthetics have been obtained. The test conditions (flow rate, concentration, humidity) were those relevant to the application, and the effect of variation of these conditions was also studied. The air flow resistance of the charcoals was measured. Basic data are thus provided for the design of suitable adsorbers. The performance of two prototype anaesthetic adsorbers has been measured.