BS IS0 14997:2017 BSl Standards Publication Optics and photonics Test methods for surface imperfections of optical elements bsi. BSISO14997:2017 BRITISH STANDARD Nationalforeword This British Standard is the UK implementation of IS014997:2017.It supersedes BS IS014997:2011,which is withdrawn. The UKparticipation inits preparation was entrustedto Technical Committee CPW/172,Optics andPhotonics. A listoforganizationsrepresented onthis committee can be obtained on requestto its secretary. This publication does not purportto include all the necessary provisions ofa contract.Users areresponsiblefor its correctapplication. @TheBritishStandards Institution2017 PublishedbyBSIStandardsLimited2017 ISBN 9780580 889486 ICS37.020 Compliance with aBritish Standard cannot conferimmunityfrom legal obligations. This British Standard was published under the authority of the Amendments/corrigendaissuedsincepublication Date Text affected BSISO14997:2017 INTERNATIONAL ISO STANDARD 14997 Third edition 2017-08-31 Optics and photonics - Test methods for surface imperfections of optical elements Optique et photonique-Methodesd'essai applicables aux imperfections de surfacedes éléments optiques Reference number IS014997:2017(E) ISO @IS02017