GB/T 20967-2007
ActiveNon-destructive testing - Visual testing - General principles
无损检测 目视检测 总则
Application Summary AI generated
This standard specifies general principles for conducting visual testing as a non-destructive method to detect surface discontinuities and anomalies in materials and components. It is applied across manufacturing, construction, and in-service inspection industries, particularly for welds, castings, and structural parts where direct or remote visual examination is required. The standard ensures consistent procedures for personnel qualification, lighting conditions, and documentation in quality control and maintenance contexts.
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