Workshop - What to Look for in Gas Detection and Measurement Instrumentation (55)

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	Occupational Safety & Health Administration
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Slide 55 of 76

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Class II - Dusts

Group E - combustible metal dusts - aluminum, magnesium,
conductivity is a hazard with use of electrical equipment
- some metal dusts - thorium, uranium, zirconium etc... - have very low ignition temperatures and require special precautions
Group F - Carbonaceous Dusts - coal, charcoal, carbon black
Group G - Other Dusts - flour, grain, wood, plastic

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