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BSI 19/30373688 DC:2019 Edition

BSI 19/30373688 DC:2019 Edition

$13.70

BS EN ISO 8624. Ophthalmic optics. Spectacle frames. Measuring system and terminology

Published By Publication Date Number of Pages
BSI 2019 21
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This document specifies a measuring system for spectacle frames and related terminology. It is applicable to spectacle frames with fronts that are intended to be symmetrical.

NOTE

Minor asymmetry of only the nasal bearing surfaces has been included in this edition. Since such asymmetry does not affect the lens shapes, only the definition of bridge height is affected, having an amendment in its note 2 to entry.

BSI 19/30373688 DC
$13.70