BS 2738-2:1989
Withdrawn
Date published:
Spectacle lenses, Specification for tolerances on optical properties of uncut finished lenses
Permitted tolerances on prescribed lens power, cylinder axes, optical centration and prismatic power of lenses. Marking requirements are specified and recommendations are given regarding subjective characteristics.
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BS 2738-2:1989
Get this standard
Prices exclude GST
PDF
( Single user document)
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HardCopy
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