Introduction Non-Destructive Testing (NDT) using UV flashlights plays a critical role in detecting surface and subsurface defects in industrial materials without causing damage. This guide provides a step-by-step process for effectively using NDT UV flashlights in fluorescent testing, highlighting best practices, safety measures, and technical details. 1. Understanding Fluorescent Testing in NDT Fluorescent Testing is a method where materials are inspected under ultraviolet (UV) light after being coated with a fluorescent dye penetrant. When exposed to UV light, these dyes emit bright fluorescent colors, revealing cracks, fractures, or other defects. Key Advantages: Non-invasive testing method. Accurate detection of surface and [...]