BS EN 45544-4 is the fourth part of the multi-series standard that gives guidance on the selection, installation, use and maintenance of electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours in the workplace atmospheres.
BS EN 45544-4 applies to apparatus whose primary purpose is to provide an indication, alarm and/or other output function to give a warning of the presence of toxic gas or vapour in the atmosphere and in some cases to initiate automatic or manual protective actions.
BS EN 45544-4 applies to apparatus in which the sensor automatically generates an electrical signal when gas is present.
BS EN 45544-4 is not applicable but may provide useful information, for apparatus
BS EN 45544-4 also does not apply to open-path (line of sight) area monitors. For apparatus used for sensing the presence of multiple gases, BS EN 45544-4 applies only to the detection of toxic gas or vapour.
BS EN 45544-4 on workplace air is relevant to:
BS EN 45544-4 specifies the guidelines for selection, installation, use and maintenance of electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours.
BS EN 45544-4 benefits the end-user by providing analysis, sampling and monitoring, and preparing samples for the testing and maintenance methods.
BS EN 45544-4 will allow you to provide measurement systems for the direct concentration of toxics and harmful gases that damage the ozone layer and affect the environment
EN 45544-4:2016