Tandvård Arbetsstol (ISO 7493:2006) Dentistry Operator's stool (ISO 7493:2006)

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SVENSK STANDARD SS-EN ISO 7493:2006 Fastställd 2006-05-11 Utgåva 2

1 SVENSK STANDARD SS-EN ISO 7493:2006 Fastställd Utgåva 2 Tandvård Arbetsstol (ISO 7493:2006) Dentistry Operator's stool (ISO 7493:2006) ICS Språk: engelska Publicerad: juni 2006 Copyright SIS. Reproduction in any form without permission is prohibited.

2 Europastandarden EN ISO 7493:2006 gäller som svensk standard. Detta dokument innehåller den officiella engelska versionen av EN ISO 7493:2006. Denna standard ersätter SS-EN ISO 7493, utgåva 1. The European Standard EN ISO 7493:2006 has the status of a Swedish Standard. This document contains the official English version of EN ISO 7493:2006. This standard supersedes the Swedish Standard SS-EN ISO 7493, edition 1. Upplysningar om sakinnehållet i standarden lämnas av SIS, Swedish Standards Institute, telefon Standarder kan beställas hos SIS Förlag AB som även lämnar allmänna upplysningar om svensk och utländsk standard. Postadress: SIS Förlag AB, STOCKHOLM Telefon: Telefax: E-post: sis.sales@sis.se. Internet:

3 EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM EN ISO 7493 May 2006 ICS English Version Dentistry - Operator's stool (ISO 7493:2006) Art dentaire - Siège d'opérateur (ISO 7493:2006) Zahnheilkunde - Arbeitsstuhl (ISO 7493:2006) This European Standard was approved by CEN on 13 April CEN members are bound to comply with the CEN/CENELEC Internal Regulations 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 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 national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2006 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 7493:2006: E

4 EN ISO 7493:2006 (E) Foreword This document (EN ISO 7493:2006) has been prepared by Technical Committee ISO/TC 106 "Dentistry" in collaboration with Technical Committee CEN/TC 55 "Dentistry", the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by November 2006, and conflicting national standards shall be withdrawn at the latest by November According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Endorsement notice The text of ISO 7493:2006 has been approved by CEN as EN ISO 7493:2006 without any modifications. iii

5 EN ISO 7493:2006 (E) Introduction The objectives of this International Standard are to ensure that the design and functioning of the operator's stool in the dental office will be such as to enable the dental operator to perform his or her work effectively and safely, to minimize the muscular and skeletal stresses, particularly in shoulders and spine, that arise during the performance of the work, and to allow freedom of movement without undue muscular activity. iv

7 EN ISO 7493:2006 (E) Dentistry Operator's stool 1 Scope This International Standard specifies requirements, recommendations and test methods for the operator s stool in the dental office as well as requirements for the manufacturer s instructions for use and for marking and packaging. It also covers recommendations to manufacturers on the design of operator's stools. For purposes of this International Standard, the term dental operator includes dentists, dental assistants and dental hygienists. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO ), Dentistry Vocabulary ISO , Furniture Assessment of the ignitability of upholstered furniture Part 1: Ignition source: smouldering cigarette ISO 9687, Dental equipment Graphical symbols ISO 21530, Dentistry Materials used for dental equipment surfaces Determination of resistance to chemical disinfectants 3 Terms and definitions 3.1 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 1942 and the following apply operator's stool movable seat, adjustable in height, which satisfies the general requirements relevant to the performance of dentistry by a seated operator anterio-posterior plane vertical plane which divides the operator s stool into left and right halves seat height vertical distance between the floor and the point of intersection of the swivel axis with the plane of the loaded surface or the unloaded surface of the seat 1) To be published. [Revision of ISO 1942 (all parts):1989.] 1

8 EN ISO 7493:2006 (E) seat width horizontal dimension of the widest part of the seat between the upper edges of the sides of the seat, measured perpendicularly to the anteroposterior plane of the seat seat depth horizontal dimension measured alongside the centre of the seat width in the anteroposterior plane of the seat between the vertical projections of the front edge and the back edge of the seat NOTE If the stool is provided with a backrest, the dimension is measured between the foremost projection of the centreline of the backrest and the normal projection of the front edge of the seat backrest height vertical distance between reference Point A and reference Point B, measured with the seat loaded and with an unloaded backrest (in free-standing position) For this measurement, it is necessary to adjust the backrest to its most forward position and, if it can be pivoted upon a horizontal axis, to put it in the vertical position least favourable position of the operator's stool position of the operator's stool at which the load-bearing part of the seat and two adjacent castors are placed in their least favourable position with regard to the seat-tipping stability 3.2 Symbols Figure 1 shows the following symbols: h 1 h 2 h 3 c 1 c 2 c 3 e A B C D E F G seat height for loaded surface; seat height for unloaded surface; backrest height; seat depth; seat depth, if a backrest is provided; seat width; horizontal distance between the line connecting the swivel axis and the axis of two adjacent castors in their least favourable position; reference Point A, the point of intersection of the plane of the upper-loaded surface of the seat with the vertical axis of the stool; reference Point B, the centre of the area on the backrest that provides lumbar support and point of application of the force for testing the deflection of the backrest; reference Point C, the point on the vertical axis where the vertical force for testing the load-carrying capacity of the stool is applied; reference Point D, the point on the upper plane of the unloaded seat at a distance of 60 mm from the least favourable edge of the seat where the vertical and horizontal forces for testing the stability of the stool are applied (the magnitude and direction of the forces to be applied in the stability test are depicted for clarity); reference Point E, the point for the application of vertical force for testing the armrest; reference Point F, the point for the application of horizontal force for testing the armrest; reference Point G, the point for the application of horizontal force for testing the armrest. 2

Tandvård Medicintekniska produkter för tandvård Dentala implantat. Dentistry Medical devices for dentistry Dental implants

SVENSK STANDARD SS-EN 1642:2005 Fastställd 2005-04-15 Utgåva 2 Tandvård Medicintekniska produkter för tandvård Dentala implantat Dentistry Medical devices for dentistry Dental implants ICS 11.060.15 Språk: