BS IS0 19741:2018 BSl Standards Publication Optics and photonics Optical materials and components Test method for striae in infrared optical materials bsi. BSISO19741:2018 BRITISH STANDARD Nationalforeword ThisBritish Standard is theUKimplementation of IS019741:2018. The UK participation in its preparation was entrusted to Technical Committee CPW/172,Opticsand Photonics. Alistoforganizations represented on this committee can be obtained on requesttoits secretary. This publication does not purport to include all the necessary provisions ofa contract. Users areresponsible for its correct application. @TheBritish StandardsInstitution2018 Published by BSI Standards Limited2018 ISBN9780580894961 ICS37.020 Compliance with aBritish Standard cannotconfer immunityfrom legal obligations. This British Standard was published under the authority of the Amendments/corrigendaissued sincepublication Date Text affected BS ISO 19741:2018 ISO INTERNATIONAL STANDARD 19741 First edition 2018-05-11 Optics and photonics Optical materials and components Test method for striae in infrared optical materials Optiqueetphotonique-Materiauxetcomposantsoptiques Méthodesd'essaipourdéterminerlesstriesdesmateriaux optiquesinfrarouges Reference number ISO 19741:2018(E) ISO @ IS0 2018