Patent ID: 7805974
Filing Date: 2010-10-05
Classification: G01N

Abstract:
1. A method of testing performance of a gas sensor assembly capable of monitoring a toxic gas, comprising: providing a gas sensor assembly capable of monitoring a toxic gas; providing a fluid coupling apparatus; applying a testing gas adjacent the gas sensor assembly from the fluid coupling apparatus; obtaining a first reading value of testing gas; storing the first reading value; obtaining a second gas sensor assembly reading value; determining a rate-of-rise value of the first and second reading values of the gas sensor based on a difference of the first and second reading values relative to a testing time interval therebetween; and determining if a gas sensor assembly passing condition exists based on a comparison of the rate-of-rise value of the first and second reading values to at least a first predefined rate-of-rise value of the gas sensor assembly; wherein the passing condition exists if the rate-of-rise value of the first and second reading values at least reaches the first predefined rate-of-rise value and if the rate-of-rise value of the first and second reading values does not exceed a second predefined rate-of-rise value.