4.5.7.5.(1)

Objective

OS1 Fire Safety

Attribution

Intent

Intent 1:

To limit the probability of confusion regarding whether valves are opened or closed, which could lead to delays in shutting off the flow of liquid during an emergency, which could lead to the escape of liquid not being minimized, which could lead to the spread of liquid, which could lead to the accumulation and subsequent ignition of vapour from a nearby ignition source, which could lead to harm to persons, including emergency responders.

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