GB/T 20968-2007
ActiveNon-destructive testing - Aids to visual inspection - Selection of low-power magnifiers
无损检测 目视检测辅助工具 低倍放大镜的选用
Application Summary AI generated
This standard provides guidelines for selecting low-power magnifiers used as aids in visual non-destructive testing. It is applied in industrial inspection contexts, such as examining welds, castings, or machined surfaces for surface defects, where magnification between 2x and 10x is required to enhance detection of cracks, porosity, or other discontinuities. The standard helps engineers and procurement professionals choose appropriate magnifiers based on factors like working distance, field of view, and illumination for consistent inspection quality.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.