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BS ISO 3058:1998
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Non-destructive testing. Aids to visual inspection. Selection of low-power magnifiers
Hardcopy , PDF
English
15-05-1998
Defines the characteristics for low-power magnifiers and gives recommendations for their selection for inspection of surfaces. Does not include watch-makers' loupes and spectacles, single-element, spherical- or cylindrical-lens magnifiers where either the lens or lens-mount rests on the surface of the object being examined (including magnifiers with any form of graduated scale for the purpose of measuring), plastic lens sacs, liquid filled, or magnifiers for examining internal surfaces.
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