BS IS0 22764:2020 BSl Standards Publication Jewellery and precious metals Fineness of solders used with precious metal jewellery alloys bsi. BSIS022764:2020 BRITISH STANDARD National foreword This British Standard is the UK implementation of IS0 22764:2020 The UKparticipation in its preparation was entrusted toTechnical CommitteeSTI/53,Specificationsandtestmethodsfor jewellery and horology. The use of solder in jewelleryarticles can be subject to individual national legislation and this legislation must be observed when using solder in jewellery articles intended for sale in such countries. Several requirements stated in this standard conflict with those ofthe UK Hallmarking Act 1973 and the latter thus takes precedence with precious metal articles offered for sale in the UK. The use of solder in jewellery articles can be subject to individual national legislation and this legislation must be observed when using solder in jewellery articles intended for sale in such countries. Several requirements stated in this standard conflict with those of the UK Hallmarking Act1973 and the latter thus takes precedence with precious metal articles offered for sale in the UK. A list of organizations represented on this committee can be obtained on requestto its secretary. This publication does not purport to include all the necessary provisions ofa contract.Users are responsiblefor its correct application. @The British Standards Institution2020 PublishedbyBSIStandardsLimited2020 ISBN9780580515682 ICS 39.060 Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and StrategyCommitteeon30April2020. Amendments/corrigenda issued since publication Date Text affected BSIS022764:2020 INTERNATIONAL ISO 22764 STANDARD First edition 2020-01-27 Jewellery and precious metals Fineness of solders used with precious metal jewellery alloys Joaillerie bijouterie et métaux precieux-Titre des brasures utilisees pour les alliages de métaux precieux pour les articles de joaillerie et debijouterie Reference number ISO 22764:2020(E) ISO @IS02020