NIST Time|NIST Home|About NIST|Contact NIST

HomeAll Years:AuthorKeywordTitle2005-2010:AuthorKeywordTitle

Detector Sensitivity and Siting Requirements for Dwelling: Phase 2. Final Report.

pdf icon Detector Sensitivity and Siting Requirements for Dwelling: Phase 2. Final Report. (23340 K)
Harpe, S. W.; Waterman, T. E.; Christian, W. J.

NBS GCR 77-82; 379 p. February 1977.


National Bureau of Standards, Gaithersburg, MD

Available from:

National Technical Information Service (NTIS), Technology Administration, U.S. Department of Commerce, Springfield, VA 22161.
Telephone: 1-800-553-6847 or 703-605-6000;
Fax: 703-605-6900; Rush Service (Telephone Orders Only) 800-553-6847;
Order number: PB-263882


detector sensitivity; escape; fire tests; gas detectors; heat detectors; residential fires; smoke detectors; photoelectric detectors


The contract for a field investigation of the effectiveness of residential smoke detectors was extended to cover 36 additional tests investigating details not completely covered in the first report. The objective of the second phase summer/fall conditions without air conditioning and to expand available information on high volume, two story structures. The effects of open windows, new technical developments in photoelectric detector design, and the response of semiconductor type residential gas detectors and mechanically powered heat detectors were also included. The tests reinforced the conclusions of the first phase of testing. They showed that open windows have little appreciable affect of life safety and detection times, and that semiconductor gas sensing fire detectors exhibit fuel specific response characteristics which seriously degraded the effectiveness in certain types of fires.