Under which standard are most visual inspections for welding conducted?

Most visual inspections for welding are conducted under the AWS D1.1 standard because it specifically outlines the requirements for welded structures and practices, particularly for steel, which is the most commonly welded material. This standard provides guidelines covering inspection procedures, acceptance criteria, and the qualifications required for individuals performing visual inspections.

It is well-recognized in the industry for ensuring the quality and integrity of welds, making it essential for compliance in projects involving structural welding. The other standards listed may address different aspects of quality assurance or other industries, but AWS D1.1 is primarily focused on welding. Hence, it encompasses the necessary criteria and methodologies that inspectors need to follow to ensure weld quality.