For which of the following is visual inspection primarily conducted?

Visual inspection is primarily conducted to assess surface conditions. This involves looking at the surface being inspected for any visible signs of imperfections, damage, or non-compliance with established standards. By evaluating the surface condition, inspectors can identify issues such as flaking, bubbling, or any inconsistent application that could affect the performance of fireproofing materials. This aspect of visual inspection is crucial because surface conditions can directly impact the overall effectiveness of fireproofing when exposed to high temperatures or fire.

While checking product labeling, verifying thickness application, and monitoring application temperature are also important aspects of quality control processes, they often require more specialized methods or tools beyond just visual observation. Surface condition assessments rely heavily on visual cues, making it a primary focus of visual inspection.