Which statement about 5.2 categories E, F, and G is true?

Which statement about 5.2 categories E, F, and G is true?

• A. Type F Has Low or No Explosion Power When Heated Under Confinement
• B. Type E Detonates Readily Under Confinement
• C. Type G Will Detonate If Heated Under Confinement
• D. Type E Will Not Detonate, Does Not Deflagrate, and Shows Low or No Effect When Heated Under Confinement

Answer: (D)

Understanding how 5.2 organic peroxide categories behave when heated under confinement is the key. Type E is the least reactive under confinement, meaning it will not detonate, will not deflagrate, and shows little or no effect when heated in a confined space. That’s why the true statement is that Type E will not detonate, does not deflagrate, and shows low or no effect under confinement. The other notes would imply greater reactivity for E or misstate the behavior of the other categories, which isn’t consistent with how these classifications are used to gauge hazard under heat and confinement.

Understanding how 5.2 organic peroxide categories behave when heated under confinement is the key. Type E is the least reactive under confinement, meaning it will not detonate, will not deflagrate, and shows little or no effect when heated in a confined space. That’s why the true statement is that Type E will not detonate, does not deflagrate, and shows low or no effect under confinement. The other notes would imply greater reactivity for E or misstate the behavior of the other categories, which isn’t consistent with how these classifications are used to gauge hazard under heat and confinement.