Definition(s)


Atmospheric Discharge

Release from pressure-relieving and depressuring devices to the atmosphere.

Source:API STD 521, Pressure-relieving and Depressuring Systems, Sixth Edition, January 2014. Global Standards

Atmospheric Discharge

Release of vapours and gases from pressure-relieving and depressuring devices to the atmosphere.

Source: API STD 521, Pressure-relieving and Depressuring Systems, Fifth Edition, January 2007 (Addendum May 2008). Global Standards 

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