Which NFPA standard pair addresses explosion prevention measures?

• A. NFPA 68
• B. NFPA 69/NFPA 68
• C. NFPA 30
• D. NFPA 101

Answer: (B)

Explosion prevention requires both preventing ignition or ignition sources and mitigating pressure buildup that could lead to an explosion. The standard pair that directly covers these measures brings together two complementary areas: one standard focuses on installing and operating explosion prevention systems, and the other sets out venting and pressure-relief methods to prevent an explosion from developing or from causing damage if it occurs. NFPA 69 provides guidance on explosion prevention systems, while NFPA 68 addresses explosion protection through deflagration venting and related relief methods. Used together, they offer a comprehensive approach to preventing and mitigating explosions in process environments.

The other options don’t focus on explosion prevention in the same way. NFPA 30 deals with the storage and handling of flammable and combustible liquids, NFPA 101 covers life safety and egress requirements, not explosion prevention measures.