IEVref:426-09-07ID:
Language:enStatus: Obsolete
Term: dilution
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Definition: continuous supply of a protective gas, after purging, at such a rate that the concentration of a flammable substance inside the pressurized enclosure is maintained at a value outside the explosive limits at any potential ignition source (that is to say, outside the dilution area)

NOTE – Dilution of oxygen by inert gas may result in a concentration of flammable gas or vapour above the Upper Explosive Limit (UEL).


Publication date:2008-02
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