BS-7156-PART-2-1990 EN-148-2-1987.pdf
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1、BRITISH STANDARD BS 7156-2: 1990 EN 148-2: 1987 Incorporating Amendment No. 1 Respiratory protective devices: threads for facepieces Part 2: Specification for centre thread connection This European Standard EN 148-2 has the status of a British Standard UDC 614.894:621.882.082:621.643.414:62-762.444
2、Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 10:40:28 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7156-2:1990 This British Standard was published under the authority of the Board of BSI and comes into effect on 28 September 1990 BSI 08-1999 The following BS
3、I references relate to the work on this standard: Committee reference PSM/14 Draft for comment 83/38423 DC ISBN 0 580 18558 3 Cooperating organizations The European Committee for Standardization, under whose supervision this European Standard was prepared, comprises the national standards organizati
4、ons of the following Western European countries. AustriaOesterreichisches Normungsinstitut BelgiumInstitut belge de normalisation DenmarkDansk Standardiseringsraad FinlandSuomen Standardisoimisliito, r.y. FranceAssociation franaise de normalisation GermanyDeutsches Insitut fr Normung e.V. GreeceHell
5、enic Organization for Standardization IcelandTechnological Institute of Iceland IrelandNational Standards Authority of Ireland ItalyEnte Nazionale Italiano di Unificazione LuxemburgInspection du Travail et des Mines NetherlandsNederlands Normalisatie-instituut NorwayNorges Standardiseringsforbund Po
6、rtugalInstituto Portugus da Qualidade SpainAsociacin Espaola de Normalizacin y Certificacion SwedenStandardiseringskommissionen i Sverige SwitzerlandAssociation suisse de normalisation United KingdomBritish Standards Institution Amendments issued since publication Amd. No.Date of issueComments 7407J
7、anuary 1993Indicated by a sideline in the margin Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 10:40:28 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7156-2:1990 BSI 08-1999i Contents Page Cooperating organizationsInside front cover National forewordii Brief h
8、istory 2 1Object and field of application3 2Centre thread connector (A) for CO2-absorbing cartridges3 3Centre thread connector (B) for equipment connector3 4Thread bridge (AB) (for connector A and B)4 5Dimensions for thread 5/164 National appendix AInside back cover National appendix BInside back co
9、ver Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 10:40:28 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7156-2:1990 ii BSI 08-1999 National foreword This Part of BS 7156 has been prepared under the direction of the Personal Safety Equipment Standards Policy C
10、ommittee and is the English language version of EN 148 “Respiratory protective devices: Threads for facepieces” Part 2 “Centre thread connection” published by the European Committee for Standardization (CEN). EN 148-2 was produced as a result of international discussions in which the United Kingdom
11、took an active part. 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. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages Thi
12、s document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 4, an inside back cover and 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
13、 front cover. Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 10:40:28 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 148-2 June 1987 UDC 614.894:621.882.082:621.643.414:62-762.444 Key words: Personal protective e
14、quipment, respiratory protective device, facepiece, thread connection. English version Respiratory protective devices; Threads for facepieces; Centre thread connection Appareils de protection respiratoire; Filetages pour pices faciales; Raccord filetage central Atemschutzgerte; Gewinde fr Atemanschl
15、sse; Zentralgewindeanschluss This European Standard was accepted by CEN on 27 April 1987. CEN members are bound to comply with the requirements of CEN Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to
16、-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN 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 un
17、der the responsibility of a CEN member into its own language and notified to CEN Central Secretariat has the same status as the official versions. CEN members are the national standards organizations of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxemburg,
18、Netherlands, Norway, 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 CEN 1987 Copyright reserved to all CEN members Ref. No. EN 1
19、48-2:1987 (E) Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 10:40:28 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 148-2:1987 BSI 08-1999 2 Brief history This European Standard was drawn up by CEN/TC 79 “Respiratory Protective Devices” the secretariat of which
20、 is held by DIN. Work on this standard was started in 1982 in Sub-Group 3 (SG 3) “Facepieces” under German chairmanship. This European Standard is based on the following standard: DIN 3183-1. At the Plenary Meeting of CEN/TC 79 in Denmark in June 1983 the Draft Proposal was submitted and accepted un
21、animously by CEN/TC 79. It was then sent to the CEN/TC 79 Secretariat for publication as Draft European Standard. In September 1983 the Draft European Standard prEN 148 was circulated by the CEN Central Secretariat in Brussels to all CEN Members for vote and comments. Within the voting period 10 Mem
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