File:Fse-fractional-effective-concentration-v4.svg

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Fse-fractional-effective-concentration-v4.svg (SVG file, nominally 900 × 600 pixels, file size: 9 KB)

Summary

Contributions of three irritants to the total FIC in the third minute of the armchair fire, compared with the limits for vulnerable people, impaired escape and incapacitation. Based on Purser (2002), pp. 2-91, 2-121 and 2-132.

Original illustration for Fractional effective concentration, level 4 Expert.

Source basis: Purser (2002), pp. 2-91, 2-121 and 2-132; calculation in the article's worked example.
Alt text: Stacked bar of 0.75, 0.50 and 0.50 giving a total irritant fraction of 1.75, above the limits 0.3 and 1, below the band of 3 to 5.

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

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	17:24, 2 November 2026		900 × 600 (9 KB)	Jan (talk \| contribs)	Watermark: Fire Safety Academy logo icon, 70 px, 45 % opacity

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Fractional effective concentration

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Short title	Contributions of three irritants to the total FIC in the third minute of the armchair fire, compared with the limits for vulnerable people, impaired escape and incapacitation. Based on Purser (2002), pp. 2-91, 2-121 and 2-132.
Image title	Stacked bar of 0.75, 0.50 and 0.50 giving a total irritant fraction of 1.75, above the limits 0.3 and 1, below the band of 3 to 5. Source basis: Purser (2002), pp. 2-91, 2-121 and 2-132; calculation in the article's worked example.
Width	900
Height	600