SIL Certification PDF

SIL CERTIFICATION FOR FUNCTIONAL SAFETY SYSTEMS REGARDING IEC 61508

Certifying SIL component safety

Functional Safety Challenge

As functional safety demands continue to increase, safety instrument system designers for electrical/electronic and programmable electronics (E/E/PE) must integrate safety certified products (sensors, logic units and actuators) into their systems and require manufacturers to provide certificates/assessments in regard to IEC 61508* / 61511**.

Designers now require their suppliers to follow a certification process for safety instrumented functions and their components.

Safety Integrity Level (SIL) Certification is a comprehensive quality guarantee from manufacturers.

SIL Certification Solution

Bureau Veritas assesses and certifies according to the IEC 61508 standard (SIL Certification), security systems as well as for sensing devices and actuators.

We cover the following topics in order to guarantee an exhaustive and coherent assessment of components (generic or specific to particular “safety loops”):

  • Project documentation assessment

  • Development and product design assessment

  • Business process assessment

  • Relevance of feedback (lessons learned) assessment

  • Analysis and studies of Operational Safety assessment
    - Assessment of Failure Modes, Effects and Diagnostics Analysis (FMEDA) analysis
    - Assessment of Probability of dangerous Failure on Demand (PFD) and Probability of dangerous Failure per Hour (PFH) calculations

  • Assessment of verification and validation activities

Key steps to SIL Certification are:

  • The assessment always begins with an audit/diagnostic regarding the IEC 61508.

  • Bureau Veritas then proceeds to assess documentation and completes findings reports for each document linked to the safety of the component or function.

  • Complementary audits are carried out after each document assessment.

The SIL certificate is issued after all these steps have been completed.

All certifications are delivered by Bureau Veritas Certification.

Why Choose Bureau Veritas

Recognition 

Bureau Veritas Certification is accredited by COFRAC for the certification of functional safety systems in regard to the IEC 61508 standard.

Experience and Technical Expertise 

Bureau Veritas has more than 20 years of experience in Operational Safety and has expertise in systems, hardware and software.

Our specialists regularly participate in numerous working groups focused on RAMS (Reliability, Availability, Maintainability and Safety).
 

* Functional Safety of Electrical/Electronic/Programmable Electronic Safety-related Systems
** Functional safety - Safety instrumented systems for the process industry sector – based on IEC 61508 and focuses on Safety Instrumented Systems (SIS).

FAQ - FREQUENTLY ASKED QUESTIONS

  • How long does it take to obtain an SIL Certificate?

    The time delay depends on the complexity of the component or system and the maturity of the company regarding safety related development (around 3 months).

  • What does the Safety Integrity Level mean?

    The Safety Integrity Level (SIL) is a qualitative measure of the safety and a quantitative data of the safety level. It is not only the Probability of Failure.

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