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1、DRAFT FOR DEVELOPMENT DD ENV 737-6:2003 Medical gas pipeline systems Part 6: Dimensions and allocation of probes for terminal units for compressed medical gases and vacuum ICS 11.040.10; 23.040.60 ? Licensed Copy: London South Bank University, London South Bank University, Sun Dec 10 13:26:21 GMT+00
2、:00 2006, Uncontrolled Copy, (c) BSI DD ENV 737-6:2003 This Draft for Development was published under the authority of the Standards Policy and Strategy Committee on 29 April 2003 BSI 29 April 2003 ISBN 0 580 41648 8 National foreword This Draft for Development is the English language version of ENV
3、 737-6:2003, which is a Special Status European Prestandard. This publication is not to be regarded as a British Standard. It is being issued in the Draft for Development series of publications and is of a provisional nature because of the reasons given in the Foreword to ENV 737-6, i.e. principally
4、 to allow existing national standards for probes to continue in existence so that probes complying with the dimensions specified in those standards may continue to be used for new medical gas installations and the extension and maintenance of existing installations. It should be applied on this prov
5、isional basis, so that information and experience of its practical application may be obtained. BS 5682:1998 will remain in effect. A Special Status European Prestandard differs from an ENV or Technical Specification by being exempt from the necessity of regular review as to suitability for its conv
6、ersion into a European Standard, although such reviews can be undertaken should circumstances indicate. If such a review is undertaken in future, comments arising from the use of this Draft for Development will be requested so that UK experience can be reported to the European organization responsib
7、le for its proposed conversion into a European Standard. Notification of the start of any such review period will be made in an announcement in the appropriate issue of Update Standards and, according to the replies received by the end of the review period, the responsible BSI Committee will decide
8、whether to support the conversion of ENV 737-6 into a European Standard or to withdraw it. Comments relating to experience of the use of DD ENV 737-6 should be sent in writing to the Secretary of BSI Technical Committee CH/121/6, Medical gas supply systems, at 389 Chiswick High Road, London W4 4AL,
9、giving the document reference and clause number and proposing, where appropriate, suggestions for revision of the text. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European
10、publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. Summary of pages This document comprises a front co
11、ver, an inside front cover, the ENV title page, pages 2 to 14, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: London South Bank University,
12、London South Bank University, Sun Dec 10 13:26:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN PRESTANDARD PRNORME EUROPENNE EUROPISCHE VORNORM ENV 737-6 March 2003 ICS 11.040.10; 23.040.60 English version Medical gas pipeline systems - Part 6: Dimensions and allocation of probes for terminal
13、 units for compressed medical gases and vacuum Systme de distribution de gaz mdicaux - Partie 6: Dimensions et attribution des embouts pour prises murales pour gaz mdicaux comprims et pour le vide (aspiration) Rohrleistungssysteme fr medizinische Gase - Teil 6: Mae und Zuordnung von Steckern fr Entn
14、ahmestellen fr medizinische Druckgase und Vakuum This European Prestandard (ENV) was approved by CEN on 18 December 2002 as a prospective standard for provisional application. The period of validity of this ENV is limited initially to three years. After two years the members of CEN will be requested
15、 to submit their comments, particularly on the question whether the ENV can be converted into a European Standard. CEN members are required to announce the existence of this ENV in the same way as for an EN and to make the ENV available promptly at national level in an appropriate form. It is permis
16、sible to keep conflicting national standards in force (in parallel to the ENV) until the final decision about the possible conversion of the ENV into an EN is reached. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungar
17、y, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2003 CENA
18、ll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. ENV 737-6:2003 E Licensed Copy: London South Bank University, London South Bank University, Sun Dec 10 13:26:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ENV 737-6:2003 (E) 2 Contents page F
19、oreword3 Introduction.4 1Scope 5 2Normative references 5 3Terms and definitions6 4Uses of probes.7 5Dimensions.7 6Allocation7 Bibliography14 Licensed Copy: London South Bank University, London South Bank University, Sun Dec 10 13:26:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ENV 737-6:2003 (E) 3
20、Foreword This document (ENV 737-6:2003) has been prepared by Technical Committee CEN/TC 215 “Respiratory and anaesthetic equipment“ the secretariat of which is held by BSI as a Special Status European Prestandard (ENV). EN 737 consists of the following Parts under the general title “Medical gas pipe
21、line systems”: Part 1: Terminal units for compressed medical gases and vacuum Part 2: Anaesthetic gas scavenging disposal systems Basic requirements Part 3: Pipelines for compressed medical gases and vacuum Part 4: Terminal units for anaesthetic gas scavenging systems Part 6: Dimensions and allocati
22、on of probes for terminal units for compressed medical gases and vacuum Taking into account that: there are CEN member countries using terminal units and probes which comply with EN 737-1 and which have dimensions of probes complying with the national standards of Austria (NORM 7387 series), France
23、(AFNOR NF S 90-116), Germany (DIN 13260, Teil 2), Italy (UNI 9507), Sweden (SS 87 524 30) and United Kingdom (BS 5682); there are CEN member countries using terminal units and probes of existing proprietary design which comply with EN 737-1 and which have published gas-specific dimensions and tolera
24、nces; some of these national standards and proprietary designs have a special status defined by law or regulation and cannot therefore be changed or withdrawn; this document is published as a Special Status European Prestandard (ENV) for the following reasons: CEN members will not be bound to implem
25、ent the ENV; they need only make the ENV available at national level in the form of e.g. “Draft for development“; the dimensions of probes given in the conflicting national standards listed above will not be withdrawn and may be kept in force in parallel to those given in the European Prestandard; t
26、erminal units and probes which comply with EN 737-1 and which have dimensions complying with the conflicting national standards listed above may continue to be installed and used for both new installations and extensions of existing installations as specified by appropriate National Authorities; ter
27、minal units and probes of existing proprietary design which comply with EN 737-1, which have published gas-specific dimensions and tolerances may continue to be installed and used for both new installations and extensions of existing installations as specified by appropriate National Authorities, pr
28、ovided that it is neither possible for probes complying with ENV 737-6 to lock into and/or release gas from sockets complying with each proprietary design nor possible for probes complying with each proprietary design to lock into and to release gas from sockets complying with ENV 737-6; it will be
29、possible to install and use terminal units and probes complying with EN 737-1 and this European Prestandard for field trials in health care facilities by agreement with appropriate National Authorities. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the fo
30、llowing countries are bound to announce this European Prestandard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and the United Kingdom. Licensed Co
31、py: London South Bank University, London South Bank University, Sun Dec 10 13:26:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ENV 737-6:2003 (E) 4 Introduction Terminal units are the points on a medical gas supply system where the operator makes connections and disconnections for the supply of spec
32、ified medical gases to anaesthetic machines, lung ventilators or other items of medical equipment, and where a wrong connection can create a hazard to the life of a patient. Connection of medical equipment to a terminal unit is made by inserting a gas-specific probe into a gas-specific connection po
33、int on the appropriate terminal unit. Both the probe and the terminal unit are be gas-specific to ensure that the correct gas is delivered to the medical equipment. It is important therefore that probes and the corresponding gas-specific connection points are designed and manufactured in such a way
34、as to meet the requirements specified in this European Prestandard. This European Prestandard gives the dimensions and allocation of probes and the corresponding gas-specific connection points, in order to ensure that only one design of probe is used for each specified medical gas. Licensed Copy: Lo
35、ndon South Bank University, London South Bank University, Sun Dec 10 13:26:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ENV 737-6:2003 (E) 5 1 Scope This European Prestandard specifies the dimensions and allocation of probes intended to be connected to terminal units of medical gas pipeline systems
36、 specified in EN 737-3 for use with the following medical gases: oxygen; nitrous oxide; medical air; carbon dioxide; oxygen/nitrous oxide mixture (50/50 % V/V); air for driving surgical tools; nitrogen for driving surgical tools; vacuum. It is intended to ensure that only gas-specific probes are use
37、d so as to prevent wrong connection of probes to terminal units for different gases. This European Prestandard specifies the dimensions of the probe intended to be connected to terminal units of medical gas pipeline systems specified in EN 737-3 for supply and disposal of air for driving surgical to
38、ols. This European Prestandard specifies the dimensions and allocation of each gas-specific connection point. This European Prestandard does not specify the dimensions of NIST connectors. These dimensions are given in EN 739. This European Prestandard does not specify the dimensions of probes intend
39、ed to be connected to terminal units for anaesthetic gas scavenging systems. These dimensions are given in EN 737-4. This European Prestandard does not specify the suitability of material, cleanliness, testing, gas-specificity, identification and information. These are specified in EN 737-1 which al
40、so applies to probes and gas-specific connection points. 2 Normative references This European Prestandard incorporates, by dated or undated references, provisions from other publications. These normative references are cited at the appropriate places in the text, and the publications are listed here
41、after. For dated references, subsequent amendments to or revision of any of these publications apply to this European Prestandard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). EN 20286-1
42、, ISO system of limits and fits - Part 1: Bases of tolerances, deviations and fits (ISO 286-1:1988). Licensed Copy: London South Bank University, London South Bank University, Sun Dec 10 13:26:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ENV 737-6:2003 (E) 6 3 Terms and definitions For the purposes
43、 of this European Prestandard, the following terms and definitions apply. 3.1 gas-specific having characteristics which prevent interchangeability and thereby allow assignment to one gas or vacuum service only 3.2 gas-specific connection point that part of the socket which is the receptor for a gas-
44、specific probe 3.3 medical gas any gas or mixture of gases intended to be administered to patients for therapeutic, diagnostic or prophylactic purposes, or for surgical tool application 3.4 medical gas pipeline system central supply system with control equipment, a pipeline distribution system and t
45、erminal units at the points where medical gases or vacuum can be required 3.5 medical gas supply system either a medical gas pipeline system; or any other installation having no permanent pipeline system but employing a medical gas supply source complete with pressure regulators 3.6 NIST (non-interc
46、hangeable screw-threaded) connector range of male and female components intended to maintain gas specificity by the allocation of a set of different diameters and a left or right hand screw thread to the mating components for each particular gas 3.7 probe non-interchangeable male component designed
47、for acceptance by and retention in the socket 3.8 socket that part of a terminal unit which is either integral or attached to the base block by a gas-specific interface and which contains the gas-specific connection point 3.9 terminal unit outlet assembly (inlet for vacuum) of a medical gas supply s
48、ystem at which the operator makes connections and disconnections Licensed Copy: London South Bank University, London South Bank University, Sun Dec 10 13:26:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ENV 737-6:2003 (E) 7 3.10 terminal unit for supply and disposal of air for driving surgical tools
49、 combination of an outlet assembly (for supply) and an inlet assembly (for disposal) which are connected to a supply system and to a disposal system respectively and at which the operator makes connections and disconnections by means of a combined probe 4 Uses of probes Typical examples of the use of probes are given in Figure 1. 5 Dimensions 5.1Dimensions of probes for compressed medical gases and vacuum shall comply with Figure 2 and Table 1. 5.2Dimensions of gas-spec