scope:

1.1 Scope

This publication provides general information on the effects of environmental and operational factors on the reliability and maintainability of fixed combustible gas detector systems utilizing the Wheatstone bridge principle. No specific design guidelines for the layout and installation of such systems are included because many variables affect their location and operation. After consultation with the equipment manufacturer, each installation should be thoroughly evaluated in accordance with sound engineering judgment, which may include dispersion modeling.

The scope of this publication does not include the operation of toxic gas detector systems.