BS-EN-24823-1994 ISO-4823-1992.pdf
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1、BRITISH STANDARD BS EN 24823:1994 ISO 4823:1992 Incorporating Amendment No. 1 Specification for Dental elastomeric impression materials The European Standard EN 24823:1993 has the status of a British Standard UDC 615.462:616.314-77 Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 01 01:21:35 GMT+
2、00:00 2006, Uncontrolled Copy, (c) BSI BS EN 24823:1994 This British Standard, having been prepared under the direction of the Health Care Standards Policy Committee, was published under the authority of the Standards Board and comes into effect on 15 August 1992 BSI 01-2000 First published February
3、 1987 Second edition August 1992 The following BSI references relate to the work on this standard: Committee reference HCC/51 Draft for comment 90/50263 DC ISBN 0 580 21078 2 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Health Care St
4、andards Policy Committee (HCC/-) to Technical Committee HCC/51, upon which the following bodies were represented: Association of Dental Hospitals of the United Kingdom British Ceramic Research Ltd. British Dental Association British Dental Trade Association British Institute of Surgical Technologist
5、s British Society for Restorative Dentistry British Society for the Study of Orthodontics British Society for the Study of Prosthetic Dentistry British Society of Periodontology Dental Laboratories Association Limited Dental Materials Panel Department of Health Gypsum Products Development Associatio
6、n Institute of Physics Ministry of Defence Orthodontic Technicians Association Plastics and Rubber Institute Royal Society of Medicine Society of University Dental Instructors Amendments issued since publication Amd. No.DateComments 8280October 1994Indicated by a sideline in the margin Licensed Copy
7、: sheffieldun sheffieldun, na, Wed Nov 01 01:21:35 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 24823:1994 BSI 01-2000i Contents Page Committees responsibleInside front cover National forewordii Foreword2 1Scope3 2Normative reference3 3Definitions3 4Classification3 5Requirements3 6Sampling4 7Tes
8、t methods4 8Manufacturers information8 9Packaging8 10Marking9 Figure 1 Apparatus for determining consistency9 Figure 2 Tray for determining total working time10 Figure 3 Loading device for determining working time10 Figure 4 Instrument for strain in compression11 Figure 5 Slit mould with fixation ri
9、ng12 Figure 6 Apparatus for recovery from deformation13 Figure 7 Apparatus for detail reproduction and compatability with gypsum14 Table 1 Physical requirements4 List of referencesInside back cover Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 01 01:21:35 GMT+00:00 2006, Uncontrolled Copy, (c)
10、 BSI BS EN 24823:1994 ii BSI 01-2000 National foreword This Part of BS 4269 has been prepared under the direction of the Health Care Standards Policy Committee and is identical with ISO 4823:1992 Dental elastomeric impression materials prepared by Technical Committee 106, Dentistry, of the Internati
11、onal Organization for Standardization (ISO) with the active participation of the UK. In 1993, the European Committee for Standardization (CEN) accepted ISO 4823:1992 as European Standard EN 24823:1993. As a consequence of implementing the European Standard, this British Standard is renumbered as BS
12、EN 24823 and any reference to BS 4269 should be read as a reference to BS EN 24823. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itse
13、lf confer immunity from legal obligations. Cross-reference International StandardCorresponding British Standard ISO 6873:1983BS 7013:1989 Specification for dental gypsum products (Identical) Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title p
14、age, pages 2 to 14, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 01 01:21:35 GMT+00:00
15、2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 24823 December 1993 UDC 615.462:616.314-77 Descriptors: Dentistry, dental materials, dental impressions, rubber, classifications, specifications, compatibility, tests, information, packing, marking English version
16、Dental elastomeric impression materials (ISO 4823:1992) Produits dentaires pour empreintes, base dlastomres (ISO 4823:1992) Zahnrztliche elastomere Abformmassen (ISO 4823:1992) This European Standard was approved by CEN on 1993-12-20. CEN members are bound to comply with the CEN/CENELEC Internal Reg
17、ulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This
18、European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the
19、national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee f
20、r Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1993 Copyright reserved to CEN members Ref. No. EN 24823:1993 E Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 01 01:21:35 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 24823:1993 BSI 01-2000 2 Foreword This European Standard ha
21、s been taken over by Technical Committee CEN/TC 55 “Dentistry” from the work of ISO/TC 106 “Dentistry” of the International Organization for Standardization (ISO). The text was submitted to the Unique Acceptance Procedure (UAP) and approved as a European Standard. This European Standard shall be giv
22、en the status of a national standard, either by publication of an identical text or by endorsement, at the latest by June 1994, and conflicting national standards shall be withdrawn at the latest by June 1994. In accordance with the CEN/CENELEC Internal Regulations, the following countries are bound
23、 to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 01 01:21:35 GMT+00:00 2006, Uncont
24、rolled Copy, (c) BSI EN 24823:1993 BSI 01-20003 1 Scope This International Standard specifies requirements for elastomeric impression materials based, for example, on polysulfides, polysiloxane or other non-aqueous materials capable of reacting to form a rubber-like material suitable for taking impr
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