Hi, It took a few minutes to find one, but below is just one of the many standards that are implimented for plastic uses in the home that make reference to minimal levels of HCN in particular. Despite what some folks would like you to believe, plastics in conflagration are *NOT* safe to inhale even in small quantitites because of these gases. Note that I edited a bunch of lines out for brevity. Forwarded message:

X-within-URL: http://www.cern.ch/CERN/Divisions/TIS/safdoc/IS/is41/table1.html

IS 41 : TABLE 1

Test Standards and Specifications for the Selection of Plastics

TEST Standards (1) Requirements _________________________________________________________________

[text deleted]

Duration of flame application 60 s unless otherwise stated according to Clause 5. Time to extinction: 30 s * Damaged length (mm) must be measured*

FV0 or FV1 94 V0, 94V1

FT >260!C. Length burnt _________________________________________________________________

[text deleted]

_________________________________________________________________

Toxicity Toxicity of fire gases

ABD 0031

HF HC1 HCN SO2 + H2S CO NO + NO2 _________________________________________________________________

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