Intrinsic safety certification is governed by international and regional explosion-protection standards.

IEC Standards (International)

• • IEC 60079-0 — Explosive Atmospheres – General Requirements

• • IEC 60079-11 — Explosive Atmospheres – Intrinsic Safety “i”

These are the core standards used globally for Ex i certification.

European Standards (ATEX / EN)

• • EN 60079-0

• • EN 60079-11

These standards support ATEX compliance for the European market.

China GB Standards

• • GB/T 3836.1-2021

• • GB/T 3836.4-2021

These are China’s national standards for explosion-proof electrical equipment.

North American Standards

United States

• • UL 913 — Intrinsically Safe Apparatus and Associated Apparatus

Canada

• • CSA C22.2 No. 157 — Intrinsically Safe Equipment