PROCEDURE DETERMINING CONTENT OF HYDROGEN CHLORIDE IN AIR Russian patent published in 2003 - IPC

FIELD: measurement technology, methods establishing content of gaseous hydrogen chloride. SUBSTANCE: procedure includes sampling and pumping of air, division of air flow into two flows and throttling to control flow of air in flows. First and second sensors detect gaseous chlorine, first sensor measures gaseous chlorine in first flow. Second sensor measures gaseous chlorine produced by added operation of disintegration of hydrogen chloride to chlorine in second flow. Signals from first and second sensors of chlorine are subtracted, compared and converted by information processing operations to content of hydrogen chloride in ambient atmosphere. Digital indication of readings, light double-level signaling, filtration and measurement of flow rate of each air flow are carried out and flows are mixed later. EFFECT: simplified procedure with increased measurement accuracy. 1 dwg