Which indicators suggest an OC canister may be compromised or expired?

• A. A canister with any visible damage but no other signs.
• B. Damaged seals, corrosion, changes in spray pattern, leaking from the canister, or expiration date past due.
• C. A new canister with intact seals and within expiration date.
• D. No leakage and intact cap; sign of wear is acceptable.

Answer: (B)

When evaluating an OC canister, you’re looking for signs that its integrity or potency may be compromised. An expiration date past due means the chemical potency or propellant balance could have degraded, reducing effectiveness and possibly increasing risk. Damaged seals, corrosion, changes in spray pattern, or any leakage all indicate the canister’s integrity is compromised and it may fail or pose a safety hazard. Because these indicators cover both physical integrity and chemical status, they collectively signal that the canister should be retired or replaced. A fresh canister with intact seals and within its expiration date is the safe baseline, while relying on a single minor sign or assuming wear is acceptable can overlook real risks.