<p>ISO 7240-7:2011 specifies requirements, test methods and performance criteria for point-type smoke detectors that operate using scattered light, transmitted light or ionization, for use in fire detection and alarm systems installed in buildings (see ISO 7240-1). ISO 7240-7:2011 also covers point-type smoke detectors that incorporate more than one smoke sensor operating on these principles. Additional requirements and test methods for such detectors are given.</p>
<p>For the testing of other types of smoke detectors, or smoke detectors working on different principles, ISO 7240-7:2011 can be used only for guidance.</p>
<p>Smoke detectors with special characteristics, developed for specific risks, are not covered.</p>
<p>The national requirements for protection from radiation from detectors that contain radioactive materials differ from country to country and are not specified in ISO 7240-7:2011.</p>
Registration number (WIID)
51166
Scope
<p>ISO 7240-7:2011 specifies requirements, test methods and performance criteria for point-type smoke detectors that operate using scattered light, transmitted light or ionization, for use in fire detection and alarm systems installed in buildings (see ISO 7240-1). ISO 7240-7:2011 also covers point-type smoke detectors that incorporate more than one smoke sensor operating on these principles. Additional requirements and test methods for such detectors are given.</p>
<p>For the testing of other types of smoke detectors, or smoke detectors working on different principles, ISO 7240-7:2011 can be used only for guidance.</p>
<p>Smoke detectors with special characteristics, developed for specific risks, are not covered.</p>
<p>The national requirements for protection from radiation from detectors that contain radioactive materials differ from country to country and are not specified in ISO 7240-7:2011.</p>
