https://fire-safety.academy/w/index.php?action=history&feed=atom&title=File%3AFse-aspirating-smoke-detection-v2.svg 2026-11-04T14:58:02Z Revision history for this page on the wiki MediaWiki 1.43.11 https://fire-safety.academy/w/index.php?title=File:Fse-aspirating-smoke-detection-v2.svg&diff=2169&oldid=prev 2026-11-02T16:17:35Z

<p>Watermark: Fire Safety Academy logo icon, 70 px, 45 % opacity</p> <p><b>New page</b></p><div>== Summary ==<br /> Smoke detection thresholds expressed as optical density per metre: very early warning levels for aspirating systems compared with values for point detectors. Based on Hyslop et al. (2010), p. 13-2, Ministry of Business, Innovation and Employment (2025b), p. 27, and Schifiliti et al. (2002), pp. 4-23 and 4-25.<br /> <br /> Original vector illustration for [[Aspirating smoke detection]], level 2 Intermediate.<br /> <br /> * Source basis: Hyslop et al. (2010), p. 13-2; Ministry of Business, Innovation and Employment (2025b), p. 27; Schifiliti et al. (2002), pp. 4-22, 4-23 and 4-25; Peacock et al. (2026), p. 36<br /> * Alt text: Bar chart on a log scale of optical density at alarm, from NFPA 76 alert level 0.0029 per metre up to 0.15 per metre for kerosene smoke.<br /> <br /> == Licensing ==<br /> New drawing by Fire Safety Academy. © Fire Safety Academy.</div>

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