DECMS
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  1. ✓Find scope
  2. 2Governing rule
  3. 3Resolve conflicts
  4. 4Verify equipment

Step 2: Read the governing requirement. On the feature page, start with the Most Restrictive Requirement, then review applicable standards and the lead authority.

Full guideNext: Resolve conflicts →
← Standards
NFPA · NFPA · US

NFPA 497

Classification of Flammable Liquids for Electrical Installations

Classification of Flammable Liquids for Electrical Installations. Governs hazardous areas requirements for defense energetics facilities.

Current edition: 2021Official source ↗

Applies to Features of Work (0)

  • Not directly mapped to a Feature of Work.

Required for Equipment (0)

  • No equipment mapping.

Crosswalk

NFPA 497↔DIN EN ISO 13849-1Lockout tagoutSimilar