Definition(s)
MTBF
Mean time between failures.
Source: API RP 17H, Remotely Operated Vehicle (ROV) Interfaces on Subsea Production Systems, First Edition, July 2004 (Reaffirmed January 2009). Global Standards
Source: API STD 689, Collection and Exchange of Reliability and Maintenance Data for Equipment, First Edition, July 2007. Global Standards
Source: ISO 20815:2008, Petroleum, petrochemical and natural gas industries – Production assurance and reliability management. Global Standards
Source: NORSOK D-001, Drilling facilities, Rev. 3, December 2012. Global Standards
MTBF
Expectation of the time between failures. NOTE The MTBF of an item can be longer or shorter than the design life of the system.
Source: ISO 20815:2008, Petroleum, petrochemical and natural gas industries – Production assurance and reliability management. Global Standards