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BS 2738-1:1989

BS 2738-1:1989

$142.49

Spectacle lenses – Specification for tolerances on optical properties of mounted spectacle lenses

Published By Publication Date Number of Pages
BSI 1989 12
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Permitted tolerances on prescribed lens power, cylinder axes, optical centration and prismatic power of spectacle lenses ready for wear. Marking requirements are specified and recommendations are given regarding subjective characteristics.

BS 2738-1:1989
$142.49