SIST EN 27493:2000
(Main)Dentistry - Dental operator's stool (ISO 7493:1985)
Dentistry - Dental operator's stool (ISO 7493:1985)
Zahnheilkunde - Zahnärztlicher Arbeitsstuhl (ISO 7493:1985)
Art dentaire - Siege d'opérateur dentaire (ISO 7493:1985)
Dentistry - Dental operator's stool (ISO 7493:1985)
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Dentistry - Dental operator's stool (ISO 7493:1985)Zahnheilkunde - Zahnärztlicher Arbeitsstuhl (ISO 7493:1985)Art dentaire - Siege d'opérateur dentaire (ISO 7493:1985)Dentistry - Dental operator's stool (ISO 7493:1985)11.060.20Dental equipmentICS:Ta slovenski standard je istoveten z:EN 27493:1990SIST EN 27493:2000en01-januar-2000SIST EN 27493:2000SLOVENSKI
STANDARD
SIST EN 27493:2000
SIST EN 27493:2000
SIST EN 27493:2000
International Standard @ 7493 ~~ ~ ~~ INTERNATIONAL ORGANIZATION FOR STANDARDIZATION*MEXPYHAPOPHAR OPrAHMBAUMR no CTAHAAPTM3AUMM*ORGANISATlON INTERNATIONALE DE NORMALISATION Dental operator’s stool Siège d‘opérateur dentaire First edition - 1985-12-01 UDC 616.314-7 : 615.478.68 Ref. No. IS0 7493-1985 (E) Descriptors : dentistry, dental equipment, dental operating chairs, seats, specifications, definitions, tests, marking. Price based on 5 pages SIST EN 27493:2000
Foreword IS0 (the International Organization for Standardization) is a worldwide federation of national standards bodies (IS0 member bodies). The work of preparing International Standards is normally carried out through IS0 technical committees. Each 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 60, also take part 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 IS0 Council. They are approved in accordance with IS0 procedures requiring at least 75 % approval by the member bodies voting. International Standard IS0 7493 was prepared by Technical Committee ISO/TC 106, Dentistry. 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 latest edition, unless otherwise stated. O International Organizqtion for Standardization, 1985 Printed in Switzerland SIST EN 27493:2000
I NTE R NAT1 ON AL STAN DAR D IS0 7493-1985 (El Dental operator's stool O Introduction The objectives of this International Standard are to ensure that the design and functioning of the dental operator's stools 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. 1 Scope and field of application This International Standard specifies requirements and includes methods of test to be performed on the dental Operator's') stool to cover ergonomic, hygienic and safety characteristics. 0 2 Definitions For the purposes of this International Standard, the following definitions apply. 2.1 dental operator's stool: A mobile chair, adjustable in height, which satisfies the general requirements relevant to the performance of dentistry by a seated operator. 2.2 seat height (see A in the figure) : The vertical distance between the intersection point of the swivel axis with the loaded surface of the seat and the floor. 2.3 seat width (see B in the figure) : The horizontal distance passing through the swivel axis of the seat between the upper edges of the sides of the seat measured perpendicularly to the anteroposterior plane of the seat. 2.4 seat depth (see C in the figure) : The horizontal distance measured through the centre of width B through the anteroposterior plane of the seat between the vertical projec- tions of the front and back edges. If the stool is provided with a backrest, this distance is measured between the foremost projection of the centreline of the backrest and the normal projection of the front edges. 2.5 the seat and the upper surface of the loaded seat. reference point 2: The intersection of the swivel axis of 2.6 of the area on the backrest that provides lumbar support. backrest reference point (see X in the figure) : The centre 2.7 backrest height (see W in the figure): The vertical height from X to Z, measured with the seat loaded. For this measurement the backrest shall be adjusted in its most forward position and, if it can be pivoted about cl horizontal axis, it shall be put in the vertical position. 2.8 least favourable position: The position of the seat for which the load-bearing member of the seat and two adjacent castors, where applicable, are placed in their least favourable positions (as shown on the figure) with regard to the seat stability. 1) For the purposes of this International Standard, the dental operator does not include the dentist's assistant. 1 SIST EN 27493:2000
IS0 7493-1985 (E) /* Unloaded surface Loaded surface NOTE - This figure is not intended to stipulate the design of the dental operator’s stool. Figure - lllustrgtion of dental operator’s stool (see clause 2 for definitions) SIST EN 27493:2000
IS0 7493-1984 (E) 3 Characteristics 3.1 General design 3.1.1 The stool should preferably be provided with a backrest, which shall be adjustable horizontally and vertically, indepen- dent of the seat adjustment. 3.1.2 In order to minimize any risk of injury or damage, projecting parts shall be avoided and the mechanical parts pro- tected. 3.1.3 Controls for the adjustment of the seat and, where ap- plicable, for the adjustment of the backrest shall be so disposed and located as to render their accidental actuation unlikely. The controls shall, on the other hand, be easily reached and a easily operated. 3.1.4 The stool, unless otherwise specified, shall be easily movable in the unloaded or loaded condition. 3.1.5 The upper part of the stool shall not be capable of being removed from the base without the use of a tool, and the seat shall swivel on a vertical axis. 3.1.6 If the stool is fitted with castors, the abrasion resistance of the material of construction of those surfaces intended to co
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.