Which of the following statements is true about the marking requirements for Halon 1301 nozzle components?

• A. All of the above
• B. Identity of the manufacturer
• C. Size of orifice
• D. Type of orifice

Answer: (A)

The marking requirement for Halon 1301 nozzle components centers on making sure each nozzle can be correctly identified and matched to the system’s design. The identity of the manufacturer must be shown so technicians can source approved replacements and verify listing and compatibility. The size of the orifice matters because it directly affects how much agent flows through the nozzle, which in turn influences the discharge concentration and distribution in the protected space. The type of orifice is important because different orifice designs yield different flow characteristics and spray patterns, which affect how the agent is discharged and dispersed.

When all of these markings are present, you have full traceability and confidence that the nozzle will perform as intended within the system’s design parameters. That’s why selecting all of the above is the true statement.