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1、BRITISH STANDARD BS EN 1281-2:1996 Anaesthetic and respiratory equipment Conical connectors Part 2: Screw-threaded, weight-bearing connectors The European Standard EN 1281-2:1995 has the status of a British Standard ICS 11.040.10 Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 05:24:26 GMT+00
2、:00 2006, Uncontrolled Copy, (c) BSI BS EN 1281-2:1996 This British Standard, having been prepared under the direction of the Health and Environment Sector Board, was published under the authority of the Standards Board and comes into effect on 15 May 1996 BSI 02-1999 The following BSI references re
3、late to the work on this standard: Committee reference CH/44 Draft for comment 85/50769 DC ISBN 0 580 25784 3 Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee CH/44, Anaesthetic machines, breathing attachments, medical gas
4、 pipeline systems and hose assemblies, upon which the following bodies were represented: Association of Anaesthetists of Great Britain and Ireland Association of British Health-care Industries British Anaesthetic and Respiratory Equipment Manufacturers Association Department of Health Medical Steril
5、e Products Association The following body was also represented in the drafting of the standard, through a subcommittee/panel: Guild of Hospital Pharmacists Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 05:24:26 GMT+00:00 2006, Uncontr
6、olled Copy, (c) BSI BS EN 1281-2:1996 BSI 02-1999i Contents Page Committees responsibleInside front cover National forewordii Foreword2 0Introduction3 1 Scope and field of application3 2References3 3 Definitions3 4Materials3 5Design3 6Marking and information to be supplied3 Annex ZA (informative) Cl
7、auses of this European Standard addressing essential requirements or other provisions of EU Directive(s)5 Figure Components for screw-threaded weight-bearing connectors4 Table ZA.1 Correspondence between this European Standard and EU Directives5 List of referencesInside back cover Licensed Copy: she
8、ffieldun sheffieldun, na, Sat Oct 28 05:24:26 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 1281-2:1996 ii BSI 02-1999 National foreword This British Standard has been prepared by Technical Committee CH/44 and is the English language version of EN 1281-2:1995 Anaesthetic and respiratory equipment
9、 Conical connectors Part 2: Screw-threaded weight-bearing connectors, published by the European Committee for Standardization (CEN). EN 1281-2:1995 is based upon ISO 5356-2:1987 Anaesthetic and respiratory equipment Conical connectors Part 2: Screw-threaded weight-bearing connectors, but differs by
10、the addition of an endorsement notice giving common modifications to the text of ISO 5356-2:1987. The common modifications have been implemented at the appropriate places in the text and are indicated by a sideline in the margin. Attention is drawn to BS 3849-2:1988, which implements ISO 5356-2:1987
11、 as an identical, dual-numbered British Standard. BS 3849-2:1988 will remain extant until either the date of withdrawal (DOW) of national standards conflicting with EN 1281-2:1995 is reached (1998-06-13) or until EN 1281-1, addressing cones and sockets, is adopted as a BS EN, whereupon BS 3849-1 and
12、 BS 3849-2 will be withdrawn. It is expected that, upon publication, EN 1281-1 will be adopted as BS EN 1281-1. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct applications. Compliance with a Brit
13、ish Standard does not of itself confer immunity from legal obligations. Cross-references Publication referred toCorresponding British Standard ISO 262:1973BS 3643 ISO metric screw threads Part 1:1981 Principles and basic data ISO 4135:1979BS 6015:1980 Glossary of terms used in anaesthesiology ISO 53
14、56-1:1987BS 3849 Conical connectors for anaesthetic and respiratory equipment Part 1:1988 Specification for cones and sockets (excluding 8.5 mm size) Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 6, an inside back cover a
15、nd 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, Sat Oct 28 05:24:26 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN
16、STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1281-2 December 1995 ICS 11.040.10 Descriptors: Medical equipment, anaesthetic equipment, screwed connections, fittings, pipe fittings, specifications, dimensions English version Anaesthetic and respiratory equipment Conical connectors Part 2: Screw-thread
17、ed weight-bearing connectors (ISO 5356-2:1987 modified) Matriel respiratoire et danesthsie Raccords coniques Partie 2: Raccords vis pouvant supporter un certain poids (ISO 5356-2:1987 modifie) Ansthesie- und Beatmungsgerte Konische Konnektoren Teil 2: Gewichtstragende konische Konnektoren mit Schrau
18、bgewinde (ISO 5356-2:1987 gendert) This European Standard was approved by CEN on 1995-12-05. 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
19、 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 r
20、esponsibility 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, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, No
21、rway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1995 All rights of reproduction and communication in any form and by any me
22、ans reserved in all countries to CEN and its members. Ref. No. EN 1281-2:1995 E Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 05:24:26 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 1281-2:1995 BSI 02-1999 2 Foreword The text of the International Standard ISO 5356-2:1987, from ISO/TC 121, An
23、aesthetic and respiratory equipment, of the International Organization for Standardization (ISO) has been taken over as a European Standard, EN 1281-2:1995, by the Technical Committee CEN/TC 215, Respiratory and anaesthetic equipment, with common modifications. The European Standard shall be given t
24、he status of a national standard, either by publication of an identical text or by endorsement, at the latest by June 1996, and conflicting national standards shall be withdrawn at the latest by June 1998. This European Standard has been prepared under a mandate given to CEN by the European Commissi
25、on and the European Free Trade Association, and supports essential requirements of EU Directive(s). For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this standard. According to the CEN/CENELEC Internal Regulations, the following countries are bound to imp
26、lement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of the International Standard ISO 5356-2:1987 has been approv
27、ed by CEN as a European Standard with agreed common modifications, as indicated by a vertical line in the margin of the text. Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 05:24:26 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 1281-2:1995 BSI 02-19993 0 Introduction 0.1 ISO 5356 comprises t
28、he following two parts: Part 1: Cones and sockets; Part 2: Screw-threaded weight-bearing connectors. 0.2 While the conical connectors specified in ISO 5356-1 are satisfactory for lightweight breathing attachments, there is also a need for more substantial connectors to support heavy or fragile compo
29、nents. Factors governing the design of these connectors include robustness, simplicity, ease of sterilization, and ease of engagement and disengagement by hand. They should also be compatible with connectors meeting the requirements laid down in ISO 5356-1 and should, if possible, eliminate the like
30、lihood of inadvertent misconnection, although it has to remain the responsibility of the user to check that any system in which they are used is correctly assembled before use. Screw-threaded weight-bearing connectors specified in this part of ISO 5356 may be used for attachments within the breathin
31、g system and at the common gas outlet. 1 Scope and field of application This part of ISO 5356 specifies requirements for screw-threaded weight-bearing conical connectors intended for use with inhalation anaesthesia apparatus and ventilators; such connectors are intended for mounting heavy accessorie
32、s. 2 References ISO 262, ISO general purpose metric screw threads Selected sizes for screws, bolts and nuts. ISO 965-2, ISO general purpose metric screw threads Tolerances Part 2: Limits of sizes for general purpose bolt and nut threads Medium quality. ISO 5356-1, Anaesthetic and respiratory equipme
33、nt Conical connectors Part 1: Cones and sockets. prEN 1281-1, Anaesthetic and respiratory equipment Conical connectors Part 1: Cones and sockets. 3 Definitions For the purposes of this part of ISO 5356, the following definitions apply. NOTEDefinitions have been taken from ISO 4135. 3.1 inhalation an
34、aesthesia apparatus equipment intended for dispensing and delivering anaesthetic gases and vapours into a breathing system for delivery to the patient 3.2 breathing attachments components intended to make up or complete a breathing system 3.3 breathing system those gas pathways continuously or inter
35、mittently in communication with the patients respiratory tract during any form of ventilation NOTE 1In practice a breathing system usually extends from a) the point of supply1) of a controlled gas mixture, for example the common gas outlet of an anaesthetic machine, or b) the fresh-gas inlet of a ci
36、rcle system, lung ventilator, T-piece, etc., or c) the fresh-gas inlet of a manually-operated resuscitator. NOTE 2It usually extends to the point at which gas mixture escapes to atmosphere or a gas scavenging system, for example from an APL valve, the open end of a T-piece, etc. NOTE 3Gas pathways e
37、xclusively concerned with gas scavenging systems are not regarded as part of the breathing system. 4 Materials Materials used in the manufacture of screw-threaded weight-bearing connectors shall be as specified in ISO 5356-1. 5 Design The dimensions of the components of screw-threaded weight-bearing
38、 connectors shall be as shown in the figure. The free axial movement of the union nut on the female component shall be not more than 2 mm in order that, when the connectors are unscrewed, the male and female components shall be forced apart. All male screw threads shall be M33 2-6 g and all female s
39、crew threads shall be M33 2-6 H in accordance with ISO 262 and ISO 965-2. 6 Marking and information to be supplied Screw-threaded weight-bearing connectors shall comply with clauses 9 and 10 of prEN 1281-1. 1) In some situations, particularly in lung ventilators, this point may be inside a piece of
40、equipment and should not be confused with a connection port fitted elsewhere, for example on the casing of a ventilator. Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 05:24:26 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 1281-2:1995 4 BSI 02-1999 NOTE 1All male screw threads: M33 2-6g All
41、female screw threads: M33 2-6H NOTE 2All conical tapers as specified for 22 mm size connectors in ISO 5356-1. * 18 mm diameter intended for use within breathing systems. Figure Components for screw-threaded weight-bearing connectors Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 05:24:26 GMT
42、+00:00 2006, Uncontrolled Copy, (c) BSI EN 1281-2:1995 BSI 02-19995 Annex ZA (informative) Clauses of this European Standard addressing essential requirements or other provisions of EU Directive(s) This European Standard has been prepared under a mandate given to CEN/CENELEC by the European Commissi
43、on and the European Free Trade Association and supports essential requirements of EU Directive 93/42/EEC. WARNING: Other requirements and other EU Directives may be applicable to the product(s) falling within the scope of this standard. The following clauses of this standard, as detailed in Table ZA
44、.1, are likely to support requirements of Directive 93/42/EEC. Compliance with the clauses of this standard provides one means of conforming with the specific essential requirements of the Directive concerned and associated EFTA regulations. Table ZA.1 Correspondence between this European Standard a
45、nd EU Directives Clauses/sub-clauses of this European Standard Corresponding annexes/paragraphs of Directive 93/42/EEC Comments 02 12 22 32 4See appropriate device standard 51; 2; 9.1 Figure 12; 9.1 Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 05:24:26 GMT+00:00 2006, Uncontrolled Copy, (c
46、) BSI 6 blank Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 05:24:26 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 1281-2:1996 BSI 02-1999 List of references See national foreword. Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 05:24:26 GMT+00:00 2006, Uncontrolled Copy, (c) BSI
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48、ritish Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions British Standards are updated by amendment or revision. Users o
49、f British Standards should make sure that they possess the latest amendments or editions. It is the constant aim of BSI to improve the quality of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover. Tel: 020 8996 9000. Fax: 020 8996 7400. BSI offers members an individual updating service called PLUS