What procedure is required for any halocarbon agent left in the cylinder prior to recharge?

What procedure is required for any halocarbon agent left in the cylinder prior to recharge?

• A. The agent is collected for recycling.
• B. The cylinder is vented to atmosphere.
• C. The cylinder is discarded.
• D. The agent is returned to the supplier.

Answer: (B)

Residual halocarbon left in a cylinder must be depressurized before recharge by venting it to atmosphere. This controlled venting releases any remaining agent so the cylinder is empty and ready to accept a fresh charge, ensuring the recharge amount is accurate and preventing contamination or overpressure. After venting, the cylinder is prepared for recharging and testing. Collecting the residual agent for recycling isn’t the mandated pre-recharge step, discarding it would waste the agent and isn’t appropriate as a standard procedure, and returning it to the supplier isn’t the required pre-charge step in this context.

Residual halocarbon left in a cylinder must be depressurized before recharge by venting it to atmosphere. This controlled venting releases any remaining agent so the cylinder is empty and ready to accept a fresh charge, ensuring the recharge amount is accurate and preventing contamination or overpressure. After venting, the cylinder is prepared for recharging and testing.

Collecting the residual agent for recycling isn’t the mandated pre-recharge step, discarding it would waste the agent and isn’t appropriate as a standard procedure, and returning it to the supplier isn’t the required pre-charge step in this context.