Functional Safety Assessment

Independent Management of Functional Safety Assessments, Audits & Support.

Functional Safety Assessment (FSA)

 

A Functional Safety Assessment is defined as; systematic and independent examination to determine whether the procedures specific to the functional safety requirements to comply with the planned arrangements are implemented effectively and are suitable to achieve the specified objectives.

 


Compliance

 

Defines compliance with the standard as: “to conform to this standard it shall be demonstrated that all the relevant requirements have been satisfied to the required criteria specified (for example safety integrity level) and therefore, for each clause or sub-clause, all the objectives have been met.”

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Why conduct FSA

 

FSA is the process of performing independent reviews and audits at predefined stages of the Safety Life-cycle. FSA is the activity of ensuring the quality of execution is adequate and as per the requirements of international standards such as IEC 61508 and IEC 61511.

FSAs may conducted at the following time:

– After the hazard and risk assessment has been carried out, the required protection layers have been identified and the Safety Requirement Specification (SRS) has been developed;

– After the Safety Instrumented System (SIS) has been designed;

– After the installation, pre-commissioning and final validation of the SIS has been completed and operation and maintenance procedures have been developed;

– After gaining experience in operation and maintenance;

– After modification and prior to decommissioning of a SIS.

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Why FSES?

 

FSES can provide independent Functional Safety Assessments to judge if the functional safety and safety integrity has been achieved by the Safety Instrumented System in accordance with IEC 61511. For more information, or to discuss your Functional Safety needs, please contact us using the form below or email [email protected] .

Our Services at FSES

Compliance to the international Standards such as IEC 61508 and IEC 61511 are imperative to meeting the Functional Safety requirements for many processes and have formed part of the quality management systems of many companies. Provision of Functional Safety Services in line with the Phases and Activities detailed in the Safety Life-cycle is an area in which our consultants are able to demonstrated experience and expertise.

Learn more about our services

PHA, HAZID and HAZOP Studies

FSES can provide Process Hazard Analysis (PHA) and HAZard and OPerability (HAZOP) study chairpersons. Our expert PHA facilitators hold certification in conducing HAZOP, HAZAN and CHAZOP.


Functional Safety Training

FSES provide various Functional Training services for all of specific parts of IEC 61508 and its sector derivatives


Consequence Modelling

Discharge and Dispersion is often required to evaluate the consequence of identified hazardous events.


Design Engineering

Functional safety activities are most effective by integration into a well-established and proven quality management system.


Building Risk Assessment

Building Risk Assessment (BRA) is a tool used to assess the risks to people in occupied buildings in the facility.


Escape, Evacuation and Rescue Analysis

Escape, Evacuation and Rescue Analysis ensures that the design of a facility is such that the risk to personnel is kept to within the ALARP region.


Functional Safety Assessment

Independent Management of Functional Safety Assessments, Audits & Support.


Functional Safety Lifecycle and Management

Functional Safety Lifecycle and Management is a key requirement demonstrating how Functional Safety is to be implemented and achieved.


Human Factors

Human factor assessment is a key area in identifying potential hazards which may be instigated by human errors.


Legacy Systems

Legacy Systems Review and Compliance.


Prior Use

Prior Use Assessment.


Proof Testing Procedures

Proof Testing is one of the main requirements to ensure that Functional Safety is maintained throughout the operational phase.


Operation and Maintenance

FSES can carry out review studies and provide consultancy to ensure Functional Safety requirements are maintained during Operation and Maintenance.


Quantitative Risk Assessment

Quantitative of Risk in terms of IRPA, PLL and graphical demonstrations such as FN Plots.


Reliability, Availability and Maintainability Study (RAMS)

Reliability, Availability and Maintainability Study (RAMS) is used as a decision making tool to increase the availability of the system, and thus increase the overall profit as well as reducing the life cycle costs.


Safety Requirements Specification

The Safety Requirements Specification (SRS) is a core document, which is used as the main reference to be followed by designers, installers, and operators of a Safety Instrumented Function (SIF).


SIL Determination

FSES are able to us various methods in identifying SIL targets; qualitatively by Risk Graphs, semi-quantitatively by Layers of Protection Analysis (LOPA) or fully quantitatively by Fault Tree Analysis (FTA).


SIL Verification

Calculation of Random Hardware Reliability and Architectural Assessments for Safety Instrumented Functions (SIFs)


SIS Conceptual Design

Safety Instrumented System (SIS) Conceptual Design