EN ISO 1562:1995
(Main)Dental casting gold alloys (ISO 1562:1993)
Dental casting gold alloys (ISO 1562:1993)
Dental-Goldgußlegierungen (ISO 1562:1993)
Diese Internationale Norm enthält eine Einteilung für Dental-Gußlegierungen auf Goldbasis mit einem Anteil von mindestens 75% (m/m) an Gold und Platingruppenmetallen und legt die Anforderungen und die Prüfmethoden fest. Diese Norm gilt für Gußlegierungen, die für die Herstellung von Zahnersatz und Füllungen geeignet sind. Diese Norm gilt nicht für Legierungen, die für Gerüste von Metall-Keramik-Zahnersatz gedacht sind, der in ISO 9693 behandelt wird; sie gilt auch nicht für Dental-Gußlegierungen mit einem Edelmetallanteil von 25% bis unter 75%, die in ISO 8891 behandelt werden.
Alliages d'or dentaires à couler (ISO 1562:1993)
Dental casting gold alloys (ISO 1562:1993)
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Dental casting gold alloys (ISO 1562:1993)Dental-Goldgußlegierungen (ISO 1562:1993)Alliages d'or dentaires a couler (ISO 1562:1993)Dental casting gold alloys (ISO 1562:1993)11.060.10Dental materialsICS:Ta slovenski standard je istoveten z:EN ISO 1562:1995SIST EN ISO 1562:2000en01-januar-2000SIST EN ISO 1562:2000SLOVENSKI
STANDARD
SIST EN ISO 1562:2000
SIST EN ISO 1562:2000
SIST EN ISO 1562:2000
INTERNATIONAL STANDARD ISO 1562 Third edition 1993-12-01 Dental casting gold alloys Alliages d ‘or dentaires & couler Reference number ISO 1562: 1993(E) SIST EN ISO 1562:2000
ISO 1562:1993(E) Foreword ISO (the International Organization for Standardization) is a worldwide federation of national Standards bodies (ISO member bodies). 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, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard ISO 1562 was prepared by Technical Committee lSO/TC 106, Dentistry, Sub-Committee SC 2, Prosthodontic materials. This third edition cancels and replaces the second edition (ISO 1562:1984), of which it constitutes a technical revision. Annex A forms an integral part of this International Standard. 0 ISO 1993 All rights reserved. No part of this publication may be reproduced or utilized in any form or by any means, electronie or mechanical, including photocopying and microfilm, without per- mission in writing from the publisher. International Organization for Standardization Case Postale 56 l CH-l 211 Geneve 20 l Switzerland Printed in Switzerland SIST EN ISO 1562:2000
ISO 1562:1993(E) Specific quantitative and qualitative requirements for freedom from bio- logical hazard are not included in this International Standard but it is rec- ommended that, in assessing possible biological or toxicological hazards, reference should be made to ISO/TR 7405:1984, Biological evaluation of dental materials, or any more recent edition. . . . Ill SIST EN ISO 1562:2000
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INTERNATIONAL STANDARD ISO 1562:1993(E) Dental casting gold alloys 1 Scope This International Standard gives the classification of, and specifies requirements and test methods for gold-based dental casting alloys with a content of at least 75 % (m/m) of gold and platinum group metals. lt applies to casting alloys suitable for the fabrication of dental restorations and appliances. lt does not apply to alloys intended for use as the substructure of a metallo-ceramic restoration, which is covered by ISO 9693; nor does it apply to dental casting alloys with noble metal content of 25 % up to but not including 75 %, which are covered by ISO 8891. Type 1: Type 2: Type 3: Type 4: low-strength - for castings subject to very slight stress, e.g. inlays; medium-strength - for castings sub- ject to moderate stress, e.g. inlays and onlays; high-strength - for castings subject to high stress, e.g. onlays, thin cast backings, pontics, full crowns and saddles; extra-hig h-strength - for castings subject to very high stress and thin Cross-section, e.g. saddles, bars, clasps, thimbles, unit casings and par- tial denture frameworks. 4 Requirements 2 Normative references The following Standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publica- tion, the editions indicated were valid. All Standards are subject to revision, and Parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most re- cent editions of the Standards indicated below. Members of IEC and ISO maintain registers of cur- rently valid International Standards. ISO 3696: 1987, Water for analytical laboratory use - Specifica tion and test methods. ISO 6892:1984, Metallic materials - Tensile testing. 3 Classification For the purposes of this international Standard, dental casting gold alloys are classified, according to their physical properties and the application for which they are recommended, as follows: 4.1 Chemical composition Dental casting gold alloys shall contain at least 65 % (m/m) of gold, and at least 75 % (m/m) of gold and platinum group metals. NOTE 1 Suitable platinum group metals are platinum, Palladium, iridium, ruthenium and rhodium. The percentage of each of the constituents in the al- loy shall be within 0,5 % (m/m) of the values stated on the package label or insert [see 9.2c)]. If there are any hazardous constituents, their per- centage shall not exceed the amount indicated on the outer package [see 9.2 j)]. Standard analytical procedures shall be used for de- termining the composition. 4.2 Biocompatibility See the Introduction for guidance on biocompatibility. 1 SIST EN ISO 1562:2000
ISO 1562:1993(E) 4.3 Mechanical properties The mechanical properties of the different types of alloys shall comply with the requirements specified in table 1. Testing shall be carried out in accordance with 7.2 and 73 . . 4.4 Density The density of the alloy as delivered shall be within 0,5 g/cm3 of the value stated on the package label or insert [see 9.2 g)]. Standard test procedures shall be used for checking this requirement. 5 Sampling The Sample shall be adequate to prepare the speci- mens as required in 6.2 and annex A, and shall be from one batch. Further samples and packaging ma- terials shall be made available for inspection in ac- cordante with 7.1. 6 Reparation of test specimen 6 . Gener Prepare the test specimens by the lost wax process of investment casting generally employed in a dental laboratory, following the manufacturer’s instructions for use. After casting, carefully separate the sprues and re- move any casting beads, fins, etc. Replace any test specimens with visible defec
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