When is it required for carbon dioxide fire...

When is it required for carbon dioxide fire extinguishers to be recharged?

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🔍 Key Concepts

• CO₂ (carbon dioxide) portable extinguisher maintenance requirements under 46 CFR Subchapter W – Lifesaving Appliances and Fire Protection Equipment (verify specific current section for your vessel type) • Difference between inspection, testing, and recharging of fire extinguishers • What event actually changes the contents/pressure of a CO₂ extinguisher vs. what is just a visual/tamper indication

💭 Think About

• Which of these answer choices describes a situation where CO₂ has actually been lost from the cylinder, not just time passing or a routine event? • Think about the purpose of a weight check on a CO₂ extinguisher: what does a significant loss in weight tell you about the condition of the cylinder? • Does breaking the trigger seal by itself mean CO₂ has been discharged, or could it be broken for another reason (e.g., tampering or inspection)? How does that compare to a measurable loss of contents?

✅ Before You Answer

• Verify what percentage of weight loss (if any) the regulations use as a criterion for recharging portable extinguishers • Confirm whether the CFR uses a time-based requirement (e.g., annually) specifically for recharging CO₂ bottles, or for inspecting/servicing them instead • Check if the rules distinguish between tamper seals and actual discharge or loss of agent when deciding to recharge

🔍 Key Concepts

💭 Think About

✅ Before You Answer