Which division describes extremely insensitive articles with no mass explosion hazard (squib)?

Which division describes extremely insensitive articles with no mass explosion hazard (squib)?

• A. Division 1.5
• B. Division 1.6
• C. Division 2.1
• D. Division 2.2

Answer: (B)

In Class 1 explosives, divisions separate hazards based on how sensitive the material is and whether it could cause a mass explosion. An extremely insensitive article that has no mass explosion hazard, like a squib, is placed in Division 1.6. This category covers items that are very unlikely to detonate or propagate a blast, even under initiation, so they don’t pose a mass explosion risk. To contrast, Division 1.5 covers very insensitive explosives that still have a mass explosion hazard, which isn’t the case for a squib. The other classes (such as Division 2.1 or 2.2) refer to gases, not explosives, so they don’t apply here.

In Class 1 explosives, divisions separate hazards based on how sensitive the material is and whether it could cause a mass explosion. An extremely insensitive article that has no mass explosion hazard, like a squib, is placed in Division 1.6. This category covers items that are very unlikely to detonate or propagate a blast, even under initiation, so they don’t pose a mass explosion risk.

To contrast, Division 1.5 covers very insensitive explosives that still have a mass explosion hazard, which isn’t the case for a squib. The other classes (such as Division 2.1 or 2.2) refer to gases, not explosives, so they don’t apply here.