Definition(s)

Failure

Loss of structural integrity and/or transmission of fluid leakage through the wall of a component or a joint.

Source: ISO 14692-1:2017, Petroleum and natural gas industries — Glass-reinforced plastics (GRP) piping — Part 1: Vocabulary, symbols, applications and materials, Second Edition, August 2017. Global Standards

Failure

An occurrence in a component or system that causes one or both of the following effects:

  • loss of component or system function
  • deterioration of functional capability to such an extent that the safety of the vessel, personnel or environment protection is significantly reduced.

Source: IMO MSC.1/Circ.1580, GUIDELINES FOR VESSELS AND UNITS WITH DYNAMIC POSITIONING (DP) SYSTEMS, 16 June 2017, International Maritime Organization. Regulatory Guidance

 

Failure

Failure means an occurrence in a component or system that causes one or both of the following effects:

  1. loss of component or system function; and/or
  2. deterioration of functional capability to such an extent that the safety of the vessel, personnel or environment protection is significantly reduced.

Source: IMO MSC.1/Circ.1580, GUIDELINES FOR VESSELS AND UNITS WITH DYNAMIC POSITIONING (DP) SYSTEMS, 16 June 2017, International Maritime Organization. Regulatory Guidance

Failure

Loss of ability to perform as required.

Source: ISO 16530-1:2017, Petroleum and natural gas industries — Well integrity – Part 1: Life cycle governance, First Edition, March 2017. Global Standards

 

Failure

The inability of a system or component to perform its required functions within specified performance requirements.

From: NCSD Glossary.

Source: NICCS™ Portal Cybersecurity Lexicon, National Initiative for Cybersecurity Careers and Studies (https://niccs.us-cert.gov/glossary) as of 11 November 2015, Global Standards

 

Failure

Loss of ability to perform as required

Note 1 to entry: A failure of an item is an event, as distinct from a fault of an item, which is a state (see Figure 8).

[SOURCE: IEC 60050 −191]

 

FIG.8

Source: ISO/TR 12489:2013(E) Reliability modelling and calculation of safety systems. Global Standards

Failure

Event causing an undesirable condition, e.g. loss of component or system function, or deterioration of functional capability to such an extent that the safety of the unit, personnel or environment is significantly reduced.

  • NOTE: Examples are structural failure (excessive yielding, buckling, rupture, leakage) or operational limitations (excessive riser tensioner stroke).

Source: API Standard 2RD, Dynamic Risers for Floating Production Systems, Second Edition, September 2013. Global Standards

 

Failure

Any equipment condition that prevents it from performing to the requirements of the functional specification.

Source: API SPEC 14A, Specification for Subsurface Safety Valve Equipment, Eleventh Edition, October 2005 (Reaffirmed June 2012). Global Standards

 

Failure

Event causing an undesirable condition, e.g. loss of component or system function, or deterioration of functional capability to such an extent that the safety of the unit, personnel or environment is significantly reduced.

  • EXAMPLE Structural failure (excessive yielding, buckling, rupture, leakage) or operational limitations (slick joint protection length, clearance).

Source: API RP 17G, Recommended Practice for Completion/Workover Risers, Second Edition, July 2006 (Reaffirmed April 2011). Global Standards

Failure

Improper performance of a device or equipment that prevents completion of its design function.

Source: API RP 7G-2, Recommended Practice for Inspection and Classification of Used Drill Stem Elements, First Edition, August 2009. Global Standards

Source: API RP 7G, Recommended Practice for Drill Stem Design and Operating Limits, Upstream Segment, Sixteenth Edition, August 1998 (Addendum 2: September 2009). Global Standards

 

Failure

Termination of the ability of an item to perform a required function.

  • NOTE: 1 After the failure, the item has a fault.
  • NOTE: 2 “Failure” is an event, as distinguished from a “fault,” which is a state.
  • NOTE: 3 This concept as defined does not apply to items consisting of software only.
  • NOTE: 4 See also Table B.1 and Clauses F.2 and F.3.

Source: API STD 689, Collection and Exchange of Reliability and Maintenance Data for Equipment, First Edition, July 2007. Global Standards

 

Failure

Termination of the ability of an item to perform a required function. NOTE 1 After failure, the item has a fault. NOTE 2 “Failure” is an event, as distinguished from “fault”, which is a state.

Source: ISO 20815:2008, Petroleum, petrochemical and natural gas industries – Production assurance and reliability management. Global Standards

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