Meaningful Surface Roughness and Quality …
the meaning of the visibility of a scratch is dependent on the comparison samples being used. For all commercial procurements, the brand of the comparison standard should be referenced on the drawing.
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April, 2013 Revision 2.0 Dave Aikens - Savvy Optics
savvyoptics.comThe MIL-PRF-13830B standard for “scratch and dig” is still active, and used throughout the optics industry By far the most commonly cited imperfection specification for
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