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Risk, Reliability & Functional Safety Knowledge Base

functional safety certification

Safety Requirement Specification (SRS) — Why It Matters for Functional Safety

The Safety Requirement Specification is one of the most critical documents in a functional safety project. Learn what it must contain, common failures, and how to write one correctly.

The Key Aspect for Achieving Functional Safety and SIL

Achieving functional safety and SIL is not just about hardware — it requires a systematic approach across the full lifecycle. Learn the single most important factor engineers overlook.

SIL-Certified Overfill Prevention Systems — IEC 61511

Overfill prevention systems must meet IEC 61511 requirements for SIL compliance. Learn what certification means for these systems, how to verify compliance, and what evidence is required.

Redundancy, HFT, and Voting in Safety Systems

Hardware Fault Tolerance, redundancy architectures, and voting logic are fundamental to SIL achievement. Learn how they work together in IEC 61508 and IEC 61511 safety system design.

The Spurious Trip Level™ Concept For Safety Functions

The Spurious Trip Level quantifies how often a safety function activates without a real demand. Learn how STL is defined, calculated, and used to balance safety and process availability.

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Where Standards Meet Real-World Application

Risk, Reliability & Functional Safety Knowledge Base

Safety Requirement Specification (SRS) — Why It Matters for Functional Safety

The Key Aspect for Achieving Functional Safety and SIL

SIL-Certified Overfill Prevention Systems — IEC 61511

Redundancy, HFT, and Voting in Safety Systems

The Spurious Trip Level™ Concept For Safety Functions

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