⚠Warning: To prevent the risk of ignition of ammable
atmospheres, batteries must only be changed in an area known
to be non-hazardous.
⚠Warning: To prevent ignition of ammable or combustible
atmospheres, disconnect power before servicing.
Do not mix batteries of different age or type.
FOR YOUR SAFETY
NOTICE: ⚠CAUTION: This safety symbol is used to
indicate a potentially hazardous situation which, if not
avoided, may result in minor or moderate injury.
ii
HYDROGEN CYANIDE EXPOSURE
STANDARDS AND HEALTH EFFECT CHART
Hydrogen Cyanide can cause rapid death due to metabolic asphyxiation.
LEVEL EFFECT
4.7ppm NIOSH recommended exposure limit (REL)
10ppm OSHA permissible exposure limit (PEL)
135ppm Death after 30 minutes exposure
181ppm Death after 10 minutes exposure
270ppm Death after 6-8 minutes exposure
3,404ppm Death after 1 minute exposure
ppm = parts per million Recent study estimations (Hathaway et al. 1991)
5.6% HCN lower ammable limits in air (percent by volume)
40.0% upper ammable limits in air (percent by volume)
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