This report presents a protocol to test different metrics used to determine the performance of sensors:
trueness, precision, accuracy, response time (T90)/recovery time (T10), stability and drift, selectivity or
cross-sensitivity, limit of quantification, sensitivity, and linear range/measuring range/nominal range
(saturation), resolution, hysteresis, reversibility, environmental effects and operation conditions
(temperature, pressure, relative humidity, vibration). The tests proposed here are based on ISO 26142
which defines the performance requirements and test methods of hydrogen detection devices designed
to measure and monitor hydrogen concentrations in stationary applications and on the standard hydrogen
test protocols for the NREL sensor testing laboratory together with considerations from the Eurachem
guide – the fitness for purpose of analytical methods in order to fulfill metrological assessment of the
performances.
