# Index - Standards & Regulations #index #standard #regulation Key standards, codes, and regulations governing fire and gas detection systems. ## International Standards ### Functional Safety - [[IEC 61508]] - Functional safety of electrical/electronic/programmable electronic safety-related systems - [[IEC 61511]] - Process industry sector implementation of IEC 61508 - [[Safety Integrity Level (SIL)]] - Quantitative safety performance measure ### Hazardous Areas - [[ATEX]] - European directives for explosive atmospheres - [[Hazardous Area Classification]] - Zone classification (0, 1, 2) - [[Temperature Classes]] - Equipment temperature ratings (T1-T6) ## Standards Hierarchy ``` IEC 61508 (Foundation) └── IEC 61511 (Process Industry) └── F&G System Requirements ``` ## Key Requirements ### SIL Certification - F&G control systems should be SIL 2 certified minimum - Ensures reliability and safety - Required for worker and asset protection ### Equipment Certification - ATEX certification for European installations - Temperature class must match gas properties - Zone classification determines equipment requirements ## Compliance Considerations - Functional safety requirements - Equipment certification - Installation standards - Maintenance requirements - Documentation and records ## Related Concepts - [[F&G Control Systems]] - System requirements - [[Gas Detection Equipment]] - Equipment selection - [[Hazardous Area Classification]] - Area classification ## Additional Standards - NFPA 72 - Fire alarm and signaling code - NFPA 70 (NEC) - National Electrical Code - IEC 60079 series - Explosive atmospheres - Local regulations and codes