Mineral and sapphire watch-glasses - Anti-reflective treatment Ingestion-build-232773 and a lack of clarity

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Mineral and sapphire watch-glasses - Anti-reflective treatment Ingestion-build-232773 and a lack of clarity1 Scope This document specifies the terms and definitions, the test methods and the evaluation of results of watch glasses with anti reflective treatments. The document is applicable to sapphire watch glasses with anti reflective treatments, and it can also be used as a reference for mineral watch glasses with anti reflective treatments.