Definition(s)
Down State
Internal disabled state of an item characterized either by a fault or by a possible inability to perform a required function during preventive maintenance. NOTE This state is related to availability performance (see 3.1).
Source: API STD 2000, Venting Atmospheric and Low-pressure Storage Tanks, Sixth Edition, November 2009. Global Standards
Down State
Internal disabled state of an item characterized either by a fault or by a possible inability to perform a required function during preventive maintenance. NOTE This state is related to availability performance.
Source: ISO 20815:2008, Petroleum, petrochemical and natural gas industries – Production assurance and reliability management. Global Standards