Refinery Safety Overview (RSO) 10
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Direct reading instruments are____________
A. Oxygen indicators
B. Combustible gas indicators (CGI)
C. Colormetric tubes
D. Organic vapor badges
A, B, C above all correct
Oxygen is depleted by __________
Combustion or chemical reactions
If your meter reads 50% of LEL, you should do what?
What is a critical level of explosive gases?
LEL (lower explosive limit)
What is an example of a non-direct reading instrument?
Organic vapor badges
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