BS IS0 5623:2022 Tracked Changes compares BS IS0 5623:2022 with BS 89250:2019 BSl Standards Publication Plastics Joining of thermoplastic moulded components - Specification for quality levels for imperfections bsi. TRACKED CHANGES IMPORTANT PLEASE NOTE This is a tracked changes copy and uses the following colour coding Text example 1 indicates added text (in green) Text example 2 indicates removed text (in red) indicates added graphic figure or table indicates removed graphic figure or table About Tracked Changes This document is a PDF containing a Tracked Changes version of PLEASENOTE This Track Changes document is designed to allow the user to identify the main changes to the standard since the previous version. It is not the official standard. Users are therefore advised to refer to the official version of record for implementation purposes. To ensure you have the latest version of record, please visit https://shop.bsigroup.com/ @ The British Standards Institution 2022 Published by BSI Standards Limited 2022 ISBN9780539242461 Amendments/corrigenda issued since publication Date Text affected BS IS0 5623:2022 — Tracked Changes ForewordNational foreword Publishing information This British Standard is published by BSI Standards Limited, under licence from The British Standards Institution, and came into effect on 28 February 2019. It was prepared by Technical Committee WEE/3, Welding of Thermoplastic Moulded Components. A list of organizations represented on this committee can be obtained on request to its secretary. Information about this document This British Standard has been developed to help organizations better understand quality levels for imperfections in the following thermal joining processes: .ultrasonic welding, ultrasonie spot welding, infrared welding; hot gas convection welding, linear vibration welding, orbital vibration welding, spin welding, laser welding, hot plate welding, and heat staking: hot air, electrical, infrared and ultrasonic. Presentational conventions The provisions of this standard are presented in roman (i.e. upright) type. Its requirements are expressed in sentences in which the prineipal auxiliary verb is "shall". Commentary, explanation and general informative material is presented in smaller italic type, and does not constitute a normative element. Where words have alternative spellings, the preferred spelling of the Shorter Oxford English Dictionary is used (e.g. 'organization" rather than "organisation"}. Contractual and legal considerations This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. This British Standard is the UK implementation of IS0 5623:2022. It supersedes BS 89250:2019, which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee WEE/3, Welding of thermoplastic moulded components. A list of organizations represented on this committee can be obtained on request to its committee manager.