🔍 Key Concepts

• Portable magazine construction requirements for Class 1.2 commercial explosives (consult the specific CFR section that covers magazines on vessels) • Differences between structural material, fastening method, and support/elevation requirements • Purpose of a portable magazine: protection from moisture, sparks, and impact, and safe access/handling

💭 Think About

• Think about which feature is absolutely essential to protect explosives from moisture and accidental ignition on a vessel’s deck. • Consider which option is most directly tied to regulatory wording for portable magazines, not just something that "sounds" safe. • Ask yourself which requirement is unique enough that regulators would specify an exact measurement for it.

✅ Before You Answer

• Verify in the CFR what is explicitly required for portable magazines used to store Class 1.2 explosives on vessels. • Check whether the regulation emphasizes material of construction, method of fastening, cover/closure design, or elevation/ventilation as a must-have feature. • Confirm if any option that looks reasonable is actually stated as mandatory for portable magazines, word-for-word or nearly so, in the regulation.