Article 9 distinguishes between different types of visual examinations based on the accessibility and proximity of the inspector to the target surface:
The light source must be checked with a calibrated light meter or by demonstrating the ability to resolve a specific target (such as a 1/32 in. or 0.8 mm black line on a neutral background) at the working distance. 4. Direct vs. Remote Visual Examination asme section v article 9
: The procedure must be demonstrated to show it can detect specific discontinuities (e.g., a 1/32" black line on a neutral gray background). 2. Personnel Qualifications (T-922) Article 9 distinguishes between different types of visual
Article 9 is applicable when explicitly required by a referencing code section. It covers a wide array of applications, including: Direct vs
The Code mandates a minimum light intensity at the surface of the component under examination: