bsi. ...making excellence a habit Inspiring trust foramore resilient world 需要更多标准请联系 wechat: wpwyq310 BS IS0 14368-4:2020 BSl Standards Publication Mineral and sapphire watch-glasses Part 4: Anti-reflectivetreatment bsi. BSIS014368-4:2020 BRITISH STANDARD Nationalforeword This British Standard is the UK implementation of IS0 14368-4:2020 The UKparticipation initspreparation was entrusted toTechnical Committee STI/53, Specifications and test methods for jewellery and horology. A list of organizations represented on this committee can be obtained on requesttoits committeemanager. This publication does not purport to include all the necessary provisions ofa contract.Users areresponsiblefor its correctapplication. @TheBritishStandards Institution2020 Published byBSI Standards Limited 2020 ISBN9780580939495 ICS 39.040.10 Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the StandardsPolicyand StrategyCommitteeon31August2020. Amendments/corrigendaissuedsincepublication Date Textaffected