Asme Section V Article 9 ((link)) -

provides the mandatory requirements for conducting Visual Examination (VT) as a non-destructive testing (NDT) method. It outlines the "how-to" for visual inspections, while the "referencing Code Section" (e.g., Section VIII for pressure vessels or Section I for boilers) provides the actual acceptance standards. Core Requirements

ASME Section V, Article 9, provides the fundamental requirements and methods for performing visual examinations (VT) on materials and components. As part of the , it establishes the "how-to" for visual inspections, ensuring that surface conditions, assembly alignments, and potential flaws are identified consistently across the industry.

Personnel conducting these exams must be qualified according to the referencing code section. Key requirements include:

A formal report is a mandatory output of an Article 9 examination. asme section v article 9

The type of artificial light sources to be utilized.

: Changes in these (e.g., switching from direct to remote viewing) require the procedure to be requalified by demonstration.

: Clarified and made mandatory, defining the 1-inch cleaning zone and the specific contamination types to be removed. As part of the , it establishes the

Article 9 requires a at the examination surface for direct visual inspection. For critical welds or when detecting small discontinuities, 1,500–2,000 lux is standard practice. Lighting shall be white, non-glaring, and directed at a suitable angle to reveal surface defects.

While the acceptance criteria are given by other codes, ASME Section V Article 9 provides the method for detecting a range of surface discontinuities. A qualified inspector is typically looking for:

Inspectors must pass an annual vision test. The type of artificial light sources to be utilized

Disclaimer: This article summarizes key requirements of ASME Section V, Article 9. For actual inspection work, always refer to the latest edition of the ASME BPVC. If you'd like, I can:

Article 9 establishes the methods, procedures, and qualifications necessary for visual examination.