BS IS0 21539:2019 BSl Standards Publication Ships and marine technology - Testing specification for walkways using electrical resistance trace heating bsi. BS ISO 21539:2019 BRITISHSTANDARD National foreword This British Standard is the UK implementation of IS0 21539:2019 The UK participation in its preparation was entrusted to Technical Committee SME/32, Ships and marine technology - Steering committee A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application @ The British Standards Institution 2019 Published by BSI Standards Limited 2019 ISBN978058095005 6 ICS47.020.50 Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 April 2019. Amendments/corrigenda issued since publication Date Text affected BS IS0 21539:2019 INTERNATIONAL ISO STANDARD 21539 First edition 2019-04-01 Ships and marine technology Testing specification for walkways using electrical resistance trace heating Reference number ISO 21539:2019(E) ISO @ IS0 2019