What should be done if the annual conductivity test is overdue?

Conducting the annual conductivity test immediately if it is overdue is crucial for ensuring the effectiveness and safety of fire extinguishers. Overdue tests can indicate that the extinguisher may not function as intended in an emergency due to potential issues such as corrosion or other physical impairments that can affect the chemical properties of the extinguishing agent.

Regular testing and maintenance are essential components of fire safety protocols, as they ensure that all equipment is in optimal working condition and compliant with safety regulations. Delaying the test could put lives at risk, as the extinguisher may fail when needed the most. Therefore, immediate action to conduct the test not only adheres to safety standards but also helps maintain readiness for fire emergencies.

The other options would present risks or could lead to non-compliance with fire safety regulations. Ignoring the overdue test would be irresponsible, waiting for the next inspection could leave a gap in safety, and contacting the manufacturer is unnecessary when immediate action can be taken to rectify the situation.