What is one responsibility of the inspector regarding the hammer test for installed lining?

One critical responsibility of the inspector regarding the hammer test for installed lining is to inspect it both before and after dry out, if possible. This dual approach is essential because it allows for the assessment of the lining’s integrity at different stages. By evaluating the lining prior to the dry out, the inspector can identify any potential issues that may have occurred during the installation process. Following the dry out, the inspector can evaluate how the material has cured and whether it maintains the necessary properties for its intended use. This comprehensive oversight ensures that the lining meets specified performance standards and helps in detecting any early signs of failure that might compromise its effectiveness.

The other options do not align with the best practices for performing the hammer test and ensuring the quality control of the refractory lining. Randomly performing the test without notification would not guarantee that safety and accountability measures are in place, while overseeing equipment selection might be part of broader responsibilities but does not pertain directly to the inspector's role in performing the test. Delegating the responsibility to a third-party inspector could lead to gaps in direct oversight and accountability, which is crucial in ensuring that the installed lining meets all necessary standards and specifications.