BS IS0 14135-1:2021 BSl Standards Publication Optics and photonics Specifications for telescopic sights Part 1: General-purpose instruments bsi. BSIS014135-1:2021 BRITISH STANDARD Nationalforeword This British Standard is the UK implementation of IS0 14135-1:2021.It supersedes BS IS014135-1:2017, which is withdrawn. The UKparticipation inits preparation was entrustedto Technical Committee CPW/172, Optics and Photonics. A listoforganizationsrepresented onthis committee can be obtained on requestto its committeemanager. This publication does not purportto include all the necessary provisions ofa contract.Users areresponsiblefor its correctapplication. @The British Standards Institution2021 Published by BSI Standards Limited 2021 ISBN9780539051650 ICS37.020 Compliance with aBritish Standard cannot conferimmunityfrom legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 28February 2021. Amendments/corrigendaissuedsincepublication Date Text affected BS ISO 14135-1:2021 ISO INTERNATIONAL STANDARD 14135-1 Fourth edition 2021-02 Optics and photonics Specifications for telescopic sights - Part 1: General-purpose instruments Optique et photonique-Spécifications pour lunettes de pointage- Partie1:Instrumentspourusagegeneral Reference number ISO 14135-1:2021(E) ISO @IS0 2021