What should inspectors consider about their environment during ultraviolet light testing?

During ultraviolet light testing in liquid penetrant inspection, glare from reflective surfaces is a critical consideration for inspectors. This glare can significantly obscure the visibility of fluorescence emitted by the penetrant, ultimately making it difficult to accurately discern indications of flaws. If there is excessive glare, inspectors may miss important defects or misinterpret readings, leading to false conclusions about the integrity of the material being tested.

While factors such as temperature, humidity, and noise levels could impact the testing process, they do not directly affect the visibility of the fluorescent indications under ultraviolet light in the same way that glare does. Therefore, managing lighting conditions, including reducing glare, is essential for effective and accurate liquid penetrant testing.