NF S86-400-4:2020
Mineral and sapphire watch-glasses - Part 4 : anti-reflective treatment

Standard No.

NF S86-400-4:2020

Release Date

2020

Published By

Association Francaise de Normalisation

Latest

NF S86-400-4:2020

Scope

ScopeThis document specifies the terms and definitions, test methods and evaluation of results of watch glasses with anti-reflective coatings. The document is applicable to sapphire watch glasses with anti-reflective coatings, and it may also

NF S86-400-4:2020 history

• 2020 NF S86-400-4:2020 Mineral and sapphire watch-glasses - Part 4 : anti-reflective treatment