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1、BRITISH STANDARD BS 4222:1967 Specification for Dimensions of the transmission coupling (slip-joint) to dental handpieces Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 30 07:03:51 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 4222:1967 This British Standard, having been approved by the Dental
2、Industry Standards Committee and endorsed by the Chairman of the Chemical Divisional Council, was published under the authority of the General Council on 13 November 1967 BSI 12-1999 The following BSI references relate to the work on this standard: Committee reference DNC/2 Draft for comment 67/7871
3、 ISBN 0 580 04418 1 Co-operating organizations The Dental Industry Standards Committee, under whose supervision this British Standard was prepared, consists of representatives from the following Government departments and scientific and industrial organizations: Association of Dental Hospitals of Gr
4、eat Britain and Northern Ireland* British Dental Association* British Dental Trade Association* Dental Education Advisory Council Ministry of Defence, Navy Department* Ministry of Health* Ministry of Technology Laboratory of the Government Chemist Ministry of Technology National Engineering Laborato
5、ry* Royal Society of Medicine* Scottish Home and Health Department The Government departments and scientific and industrial organizations marked with an asterisk in the above list, together with the following, were directly represented on the committee entrusted with the preparation of this British
6、Standard: British Iron and Steel Federation Dental Laboratories Association Institute of British Surgical Technicians (Dental Section) Institute of Dental Surgery London Dental Study Club Ministry of Defence, Air Force Department Ministry of Defence, Army Department Royal College of Surgeons of Engl
7、and Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 30 07:03:51 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 4222:1967 BSI 12-1999i Contents Page Co-operating organizationsInside front cover Forewordii 1Scope1 2Requirements1 3Marking1 Fig
8、ure 1 Dental transmission coupling (slip-joint)2 Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 30 07:03:51 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 4222:1967 ii BSI 12-1999 Foreword This British Standard has been prepared and published under the authority of the Dental Industry Standards
9、Committee at the request of the Ministry of Health. It is intended to provide closely toleranced dimensions for the transmission coupling, commonly described as the “slip-joint”, by means of which the power drive through the handpiece to the dental rotary instrument is transmitted. Observance of the
10、se dimensions will enable manufacturers of handpieces to ensure that a correct fit with the transmission coupling is secured. 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. Complianc
11、e with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages 1 and 2, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have h
12、ad amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 30 07:03:51 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 4222:1967 BSI 12-19991 1 Scope This British Standard specifies the essential dimensions a
13、nd tolerances for the transmission coupling (slip-joint) to which the dental handpiece fits. 2 Requirements The dimensions and tolerances of the transmission coupling (slip-joint) shall be as set out in Figure 1. 3 Marking Driving units manufactured to comply with this standard shall be marked with
14、the following information: 1) The name or trade symbol of the manufacturer, or both. 2) The number of this British Standard, i.e. BS 4222. Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 30 07:03:51 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 4222:1967 2 BSI 12-1999 Figure 1 Dental transmissio
15、n coupling (slip-joint) Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 30 07:03:51 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 4222:1967 BSI 12-1999 British Standards The following are available on application: YEARBOOK SECTIONAL LISTS.Gratis Acoustics Aircraft materials and components Buildi
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19、and numerical list of British Standards. 15s. Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 30 07:03:51 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 4222:1967 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for prepar
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28、r any other purpose than implementation then the prior written permission of BSI must be obtained. If permission is granted, the terms may include royalty payments or a licensing agreement. Details and advice can be obtained from the Copyright Manager. Tel: 020 8996 7070. Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 30 07:03:51 GMT+00:00 2006, Uncontrolled Copy, (c) BSI