File:Fse-hydrogen-cyanide-v2.svg

Fse-hydrogen-cyanide-v2.svg (SVG file, nominally 900 × 600 pixels, file size: 10 KB)

Summary

Time to incapacitation against hydrogen cyanide concentration from the exponential expression of the SFPE Handbook, with reported human data. Based on Purser (2002), pp. 2-104–2-105.

Original vector illustration for Hydrogen cyanide, level 2 Intermediate.

Source basis: Purser (2002), p. 2-104 (thresholds 80 and 180 ppm, human data) and p. 2-105 (Eqs. 8 and 9, checked on the page image).
Alt text: Line chart: time to incapacitation by hydrogen cyanide falls from about 35 minutes at 80 ppm to about 2 minutes at 200 ppm.

Licensing

New drawing by Fire Safety Academy. © Fire Safety Academy.

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	17:11, 2 November 2026		900 × 600 (10 KB)	Lisa (talk \| contribs)	Watermark: Fire Safety Academy logo icon, 70 px, 45 % opacity

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Hydrogen cyanide

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Short title	Time to incapacitation against hydrogen cyanide concentration from the exponential expression of the SFPE Handbook, with reported human data. Based on Purser (2002), pp. 2-104–2-105.
Image title	Line chart: time to incapacitation by hydrogen cyanide falls from about 35 minutes at 80 ppm to about 2 minutes at 200 ppm. Source basis: Purser (2002), p. 2-104 (thresholds 80 and 180 ppm, human data) and p. 2-105 (Eqs. 8 and 9, checked on the page image).
Width	900
Height	600