Components for Evaluation of Direct-Reading Monitors for Gases and Vapors

This document provides discussion of the physical, operational, and performance characteristics for direct-reading monitors. Guidance is provided for experiments to evaluate response time, calibration, stability, range, limit of measurement, impact of environmental effects, interferences, and reliability of direct-reading monitors. Also included are evaluation criteria for the experiments and details for the calculation of bias, precision and accuracy, and monitor uncertainty.