Guidance Testing & Inspection
TÜV AUSTRIA Websites > TÜV AUSTRIA English > Solution > Industry > Plant Safety: Bow-Tie Solution: Plant Safety: Bow-Tie Guidance Testing & Inspection Solution: Plant Safety: Bow-Tie Dipl.-Ing. Dr. Martin Doktor Dipl.-Ing. Dr. Martin Doktor Deutschstraße 10 1230 Wien Österreich +43 5 0454 6137 Send email Deutschstraße 10 1230 Wien Österreich Save to My Bundle Dipl.-Ing. Dr. Martin Doktor Save to My Bundle TÜV AUSTRIA Vertrieb TÜV AUSTRIA Vertrieb Deutschstraße 10 1230 Wien +43 5 0454 1700 Send email Deutschstraße 10 1230 Wien Save to My Bundle TÜV AUSTRIA Vertrieb Save to My Bundle TÜV AUSTRIA GMBH TÜV AUSTRIA GMBH Region: Österreich Deutschstraße 10 1230 Wien Österreich +43 5 0454 0 Send email Deutschstraße 10 1230 Wien Österreich Save to My Bundle TÜV AUSTRIA GMBH Save to My Bundle Bow-Tie In which region do you need this solution? Austria Romania Cyprus Switzerland Germany Turkey Greece Spain Italy Belgium English Czech Republic Poland Slovenia Albania Portugal United Kingdom KSA Egypt India All accreditations "A qualitative risk assessment method resulting in a that combines cause and hazard (fault tree) with the consequence steps (event tree)." Bow-Tie Analysis is a structured, qualitative method for risk assessment. The result is a diagram that combines both the chain of cause and hazard (fault tree) as well as the chain of consequence steps (event tree). The fault tree on the left and the event tree on the right are connected by the associated top event (such as a product release) in the middle. The Bow-Tie diagram provides a snapshot of the cause/hazard and consequences of the main scenarios as well as control elements at the time of analysis. It also provides a snapshot of the barriers used to prevent the occurrence of the adverse event or to limit its impact. Once the examination is complete, the situation may change, for example because control measures have taken effect. Bow-Tie diagrams are created by depicting following building blocks: Hazard (example: presence of hydrocarbons) Top event due to hazard (example: product release) Causes that enable the occurrence of a top event Consequences due to the occurrence of a top event Barriers which are intended to prevent the occurrence of the top event on the causal side (preventive control barriers) Barriers intended to reduce the extent of damage once a top event has occurred (mitigative barriers) A Bow-Tie diagram should be prepared, if possible, for all Major Accident Hazards (MAHs) which are to be identified in a hazard and risk analysis if necessary. More Tags: AOJ II 309/2004 Assembly evaluation Bow-Tie Cellulose Chemistry Directive 1999/92/EC Energy supplier EX Explosion safety Food Food industry Machinery Directive (2006/42/EC)Paper Petrochemistry Pharmaceuticals industry Plant safety Pressure Equipment Directive 2014/68/EU Recycling SEVESO Steel Trade Regulations Act (AOJ I 88/2000)VEXAT Waste recycling Related solutions from the same sector: Industry Structures & component testing Industry Show more Save to my Bundle Submissions for official procedures Industry Show more Save to my Bundle Acceptance test – pressure equipment Industry Show more Save to my Bundle Reinforcing steel Industry Show more Save to my Bundle All Solutions Discover more sectors: Agriculture Automotive Certification Communications Technology Construction & Real Estate Electronics Energy Foodstuffs Health & Medicine IT & Security Leisure & Entertainment Machinery Municipalities Science & Research Sports & Fitness Sustainability Tourism Trade & Commerce Transport & Traffic Martin Doktor +43 5 0454 6137 \| martin.doktor@tuv.at
Martin Doktor +43 5 0454 6137 \| martin.doktor@tuv.at

TÜV AUSTRIA Websites > TÜV AUSTRIA English > Solution > Industry > Plant Safety: Bow-Tie

Solution: Plant Safety: Bow-Tie

Bow-Tie Analysis is a structured, qualitative method for risk assessment. The result is a diagram that combines both the chain of cause and hazard (fault tree) as well as the chain of consequence steps (event tree). The fault tree on the left and the event tree on the right are connected by the associated top event (such as a product release) in the middle.

The Bow-Tie diagram provides a snapshot of the cause/hazard and consequences of the main scenarios as well as control elements at the time of analysis. It also provides a snapshot of the barriers used to prevent the occurrence of the adverse event or to limit its impact. Once the examination is complete, the situation may change, for example because control measures have taken effect.

Bow-Tie diagrams are created by depicting following building blocks:

Hazard (example: presence of hydrocarbons)
Top event due to hazard (example: product release)
Causes that enable the occurrence of a top event
Consequences due to the occurrence of a top event
Barriers which are intended to prevent the occurrence of the top event on the causal side (preventive control barriers)
Barriers intended to reduce the extent of damage once a top event has occurred (mitigative barriers)

A Bow-Tie diagram should be prepared, if possible, for all Major Accident Hazards (MAHs) which are to be identified in a hazard and risk analysis if necessary.