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Isolate

( HOT ZONE )

Warm Zone )

Cold Zone )

Isolate

Wind Direction )

( Hot Line ) ( Contamination Control Line )

-

( Access Control Points )

( Contamination Area )

( Command Post )
( Decontamination Station )

( Hot Zone ) ( Warm Zone ) ( Cold Zone )
%LEL %LEL for flammable or explosion

or IDLH PPM for toxic substances

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