High-resolution cameras are used for remote inspection, allowing for recorded documentation of inspections, often required in modern ASME Section VIII reports.
Article 9 provides the methodology for visual inspections when required by referencing Code Sections (e.g., Section VIII for pressure vessels or Section I for boilers). It is designed to detect surface conditions, including: (undercut, porosity, and spatter). Physical damage (corrosion, erosion, or mechanical wear). Structural alignment and general workmanship. Leakage during hydrostatic or pneumatic testing. Mandatory Procedural Requirements
The eye must be within 24 inches (600 mm) of the surface being examined.
Per , examination records must include:
Article 9 defines the procedures for visual examination when specified by a referencing code section (such as Section VIII for pressure vessels or B31.3 for process piping). It serves as a procedural guide ("how to") rather than an acceptance standard ("pass/fail"); acceptance criteria are always found in the referencing code. Common applications include: Weld Inspection:
Article 9 is famous for its quantifiable lighting requirements. "Looks bright enough" is not a legal defense.
Inspectors must pass an annual vision test. asme section v article 9
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Proper illumination is critical to resolving fine details like micro-cracks or pinholes.
Inspectors must demonstrate the ability to distinguish between colors and differentiate shades of gray, which is critical for identifying subtle heat-tinting, corrosion products, or material changes. 7. Evaluation, Acceptance Standards, and Documentation Physical damage (corrosion, erosion, or mechanical wear)
The procedure must demonstrate that it can resolve a black line (or a line of equal width to the finest detail expected to be resolved) scribed on a neutral background. For remote visual systems, this test chart or card must be placed at the maximum tracking distance and angle specified in the procedure to prove that the camera sensors and lenses can clearly capture the artifact. 6. Personnel Qualifications and Vision Tests
To ensure compliance with ASME Section V Article 9 during a field audit or shift, verify the following parameters: ASME Article 9 Requirement 24 inches (600 mm) Min Angle (Direct) 30 degrees from surface Min Light Intensity 100 foot-candles (1000 lux) Vision Requirement Jaeger J-1 annually Procedure Validation Resolution of 1/32" (0.8 mm) line
provides the foundational requirements for Visual Examination (VT) within the ASME Boiler and Pressure Vessel Code (BPVC) . While other articles in Section V cover more technical NDE methods like radiography or ultrasonic testing, Article 9 governs the most common and often first step of any inspection: using the human eye (or optical aids) to find surface-level defects. 1. Scope and Core Requirements Mandatory Procedural Requirements The eye must be within