EN 28654:1992

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Farben von Goldlegierungen - Bestimmung, Farbenreihe und Bezeichnung (ISO 8654:1987)Couleurs des alliages d'or - Définition, gamme de couleurs et désignations (ISO 8654:1987)Colours of gold alloys - Definition, range of colours and designation (ISO 8654:1987)39.060NakitJewelleryICS:Ta slovenski standard je istoveten z:EN 28654:1992SIST EN 28654:1998en01-april-1998SIST EN 28654:1998SLOVENSKI
STANDARD
INTERNATIONAL STANDARD INTERNATIONAL ORGANIZATION FOR STANDARDlZATION ORGANISATION INTERNATIONALE DE NORMALISATION MEXJJYHAPOaHAfl OPTAHM3A~MR l-l0 CTAH~APTM3A~MM Colours of gold alloys - Definition, range of colours and designation Couleurs des alliages d’or - Definition, gamme de couleurs et dhsigna tion ISO 8654 First edition 1987-08-15 Reference number ISO 8654: 1987 (E) SIST EN 28654:1998

Foreword ISO (the International Organization for Standardization) is a worldwide federation of national Standards bodies (ISO member bedies). The work of preparing International Standards is normally carried out through ISO technical committees. Esch member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, govern- mental and non-governmental, in liaison with ISO, also take patt in the work. Draft International Standards adopted by the technical committees are circulated to the member bodies for approval before their acceptance as International Standards by the ISO Council. They are approved in accordance with ISO procedures requiring at least 75 % approval by the member bodies voting. International Standard ISO 8654 was prepared by Technical Committee ISO/TC 174, Jewellery. Users should note that all International Standards undergo revision from time to time and that any reference made herein to any other International Standard implies its Jatest edition, unless otherwise stated. 0 International Organization for Standardkation, 1987 Printed in Switzerland SIST EN 28654:1998

INTERNATIONAL STANDARD ISO 6654 : 1987 (E) Colours of gold alloys - Definition, range of colours and designation 0 Introduction In the manufacture and sale of articles made of or coated with gold alloy, the colour of the surface of the product is an impor- tant characteristic. However, at present, an undue variety of colours of surface finishes is offered to the public. Some of these colours differ only slightly from one another. The range of colours defined in this International Standard is in- tended to enable the manufacturer to limit the stock of different colours that he might be obliged to keep. lt will also enable the purchaser to define his requirements with precision by referring to the designations given within this International Standard and so avoid the need for purchasing orders to be accompanied by colour samples. 1 Scope and fieid of application This International Standard specifies a limited number of colours of gold alloys. By specifying a range of gold alloy colours, this International Standard enables a corresponding range of polished gold colour Slips to be produced for comparison pur
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