1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 140:1999 The Europe
2、an Standard EN 140:1998 has the status of a British Standard ICS 13.340.30 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Respiratory protective devices Half masks and quarter masks Requirements, testing, markingThis British Standard, having been prepared under the direction
3、of the Health and Environment Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 April 1999 BSI 04-1999 ISBN 0 580 30683 6 BS EN 140:1999 Amendments issued since publication Amd. No. Date Text affected National foreword This British Standard is
4、 the English language version of EN 140:1998. It supersedes BS 7356:1990 which is withdrawn. The UK participation in its preparation was entrusted by Technical Committee PH/4, Respiratory Protection, to Subcommittee PH/4/3, Facepieces, which has the responsibility to: aid enquirers to understand the
5、 text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this subcommittee can b
6、e obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “F
7、ind” facility of the BSI Standards Electronic Catalogue. 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 leg
8、al obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 19 and a back cover.CEN European Committee for Standardization Comite Europe en de Normalisation Europa isches Komitee fu r Normung Central Secretariat: rue de Stassart 36, B-
9、1050 Brussels 1998 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 140:1998 E EUROPEAN STANDARD EN 140 NORME EUROPE ENNE EUROPA ISCHE NORM September 1998 ICS 13.340.30 Supersedes EN 140:1989 and EN 140:1989/A1:1992 Descriptors: per
10、sonal protective equipment, respiratory protective equipment, safety masks, accident prevention, specifications, tests, marking English version Respiratory protective devices Half masks and quarter masks Requirements, testing, marking Appareils de protection respiratoire Demi-masques et quarts de ma
11、sques Exigences, essais, marquage Atemschutzgera te Halbmasken und Viertelmasken Anforderungen, Pru fung, Kennzeichnung This European Standard was approved by CEN on 4 September 1998. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving
12、this European Standard the status of a national standard without any alteration. Up-to-date 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
13、 (English, French, German). A version in any other language made by translation under the responsibility 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, Czec
14、h Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.Page 2 EN 140:1998 BSI 04-1999 Foreword This European Standard has been prepared by Technical Committee CEN/TC 79, Respiratory prot
15、ective devices, the Secretariat of which is held by DIN. This European Standard supersedes EN 140:1989 and amendment EN 140:1989/A1:1992. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by March 1999
16、, and conflicting national standards shall be withdrawn at the latest by March 1999. This European Standard has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). For relationship with
17、 EU Directive(s), see informative Annex ZA, which is an integral part of this standard. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland
18、, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Contents Page Foreword 2 Introduction 3 1 Scope 3 2 Normative references 3 3 Definition 3 4 Description 3 5 Designation 3 6 Requirements 3 6.1 General 3 6
19、.2 Nominal values and tolerances 3 6.3 Visual inspection 3 6.4 Materials 3 6.5 Resistance to temperature 3 6.6 Flammability 3 6.7 Cleaning and disinfecting 4 6.8 Demountable parts 4 6.9 Replaceable components 4 Page 6.10 Head harness 4 6.11 Connector 4 6.12 Inhalation valves and exhalation valves 4
20、6.13 Compatibility with skin 5 6.14 Carbon dioxide content of inhalation air 5 6.15 Breathing resistance 5 6.16 Inward leakage 5 6.17 Field of vision 5 6.18 Practical performance 5 7 Testing 5 7.1 General 5 7.2 Conditioning 5 7.3 Visual inspection 5 7.4 Resistance to temperature 5 7.5 Flammability 5
21、 7.6 Cleaning and disinfecting 6 7.7 Head harness (pull test) 6 7.8 Connector 6 7.9 Exhalation valve (flow test) 6 7.10 Exhalation valve housing (pull test) 6 7.11 Carbon dioxide content of inhalation air 6 7.12 Breathing resistance 8 7.13 Inward leakage 8 7.14 Practical performance 15 8 Marking 16
22、8.1 Facepiece 16 8.2 Packaging 16 9 Information supplied by the manufacturer 17 Annex A (informative) Marking 18 Annex ZA (informative) Clauses of this European Standard addressing essential requirements or other provisions of EU Directives 19Page 3 EN 140:1998 BSI 04-1999 Introduction A given respi
23、ratory protective device can only be approved when the individual components satisfy the requirements of the test specification which may be a complete standard or part of a standard, and successful practical performance tests have been carried out on complete apparatus where specified in the approp
24、riate standard. If for any reason a complete apparatus is not tested then simulation of the apparatus is permitted provided the respiratory characteristics and weight distribution are similar to those of the complete apparatus. 1 Scope This European Standard specifies minimum requirements for half m
25、asks and quarter masks for use as part of respiratory protective devices, except escape apparatus and diving apparatus. Laboratory and practical performance tests are included for the assessment of compliance with the requirements. 2 Normative references This European Standard incorporates by dated
26、or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard onl
27、y when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. prEN 132, Respiratory protective devices Definitions. EN 134, Respiratory protective devices Nomenclature of components. prEN 148-1, Respiratory protective devices Th
28、reads for facepieces Part 1: Standard thread connection. prEN 148-2, Respiratory protective devices Threads for facepieces Part 2: Centre thread connection. EN ISO 6941, Textile fabrics Burning behaviour Measurement of flame spread properties of vertically oriented specimens. (ISO 6941:1984, includi
29、ng Amendment 1:1992) 3 Definition For the purposes of this European Standard the definitions given in prEN 132 and the nomenclature given in EN 134 apply together with the following. A half mask is a facepiece which covers the nose, mouth and chin. A quarter mask is a facepiece which covers the nose
30、 and mouth. They are intended to provide adequate sealing on the face of the wearer of a respiratory protective device against the ambient atmosphere, when the skin is dry or moist and when the head is moved. 4 Description Air enters the facepiece and passes directly to the nose and mouth area of th
31、e facepiece. The exhaled air flows directly to the ambient atmosphere, via the exhalation valve(s) or by other appropriate means. 5 Designation Half masks and quarter masks meeting the requirements of this standard shall be designated in the following manner: half mask EN 140:1998; quarter mask EN 1
32、40:1998. 6 Requirements 6.1 General In all tests, all test samples shall meet the requirements. 6.2 Nominal values and tolerances Unless otherwise specified, the values stated in this standard are expressed as nominal values. Except for temperature limits, values which are not stated as maxima or mi
33、nima shall be subject to a tolerance of 5 %. Unless otherwise specified, the ambient temperature for testing shall be (24 8)8C, the temperature limits shall be subject to an accuracy of 18C and the relative humidity shall be (50 30) %. 6.3 Visual inspection The visual inspection shall include the ma
34、rking and information supplied by the manufacturer. Testing shall be done in accordance with 7.3. 6.4 Materials The use of aluminium, magnesium and titanium or alloys containing such proportions of these metals as will, on impact, give rise to frictional sparks capable of igniting flammable gas mixt
35、ures for exposed parts, i.e. those which may be subjected to impact during use of the apparatus shall be restricted to a minimum. Testing shall be done in accordance with 7.3. 6.5 Resistance to temperature Following the conditioning in accordance with 7.2 and after being allowed to return to ambient
36、 temperature the facepiece shall show no appreciable deformation and any incorporated connector to prEN 148-1 shall be gauged and shall comply with the appropriate standard. Testing shall be done in accordance with 7.3 and 7.4. After this test the facepiece shall meet the requirements for inward lea
37、kage as specified in 6.16. Testing shall be done in accordance with 7.13. 6.6 Flammability Parts of the facepiece that might be exposed to a flame during use shall either not burn or not continue to burn for more than 5 s after removal from the flame. Testing shall be done in accordance with 7.3 and
38、 7.5. It is not required that the facepiece still has to be usable after the test.Page 4 EN 140:1998 BSI 04-1999 6.7 Cleaning and disinfecting The materials used shall withstand the cleaning and disinfecting agents and procedures as recommended by the manufacturer. Testing shall be done in accordanc
39、e with 7.6. 6.8 Demountable parts All demountable connections shall be readily connected and secured, where possible by hand. Any means of sealing used shall be retained in position when the connection is disconnected during normal maintenance. Testing shall be done in accordance with 7.3. 6.9 Repla
40、ceable components Unless integral with the half mask or quarter mask the following components (if fitted) shall be replaceable: Head harness, connector(s), inhalation and exhalation valves. Testing shall be done in accordance with 7.3. 6.10 Head harness 6.10.1 The head harness shall be designed so t
41、hat the facepiece can be donned and removed easily. Testing shall be done in accordance with 7.13 and 7.14. 6.10.2 The head harness shall be adjustable or self-adjusting and shall hold the facepiece firmly and comfortably in position. Testing shall be done in accordance with 7.13 and 7.14. 6.10.3 Ea
42、ch strap of the head harness, buckles and other adjusting means shall withstand a pull of 50 N applied for 10 s in the direction of pulling when the facepiece is donned. No breaks or sliding of the straps shall occur. The requirement applies to the buckles and attachment lugs as well as to the strap
43、s. Testing shall be done in accordance with 7.7. 6.11 Connector 6.11.1 The connection between the facepiece and the apparatus may be achieved by a permanent or special (e.g. insert) type of connection or by a thread connection to prEN 148-1. Testing shall be done in accordance with 7.3. 6.11.1.1 A f
44、acepiece shall not have more than one thread connection to prEN 148-1. Testing shall be done in accordance with 7.3. If more than one connector is fitted the design of the facepiece or of the remainder of the equipment shall be such that the use of different types or combinations of respiratory prot
45、ective devices does not present a risk. 6.11.1.2 If any other screw thread is used it shall not be possible to connect it directly to the thread to prEN 148-1. Testing shall be done in accordance with 7.3. 6.11.1.3 Half masks and quarter masks shall not be equipped with a thread connection to prEN 1
46、48-2. Testing shall be done in accordance with 7.3. 6.11.2 The connection between the faceblank and the connector shall be sufficiently robust to withstand axially a tensile force of 50 N. Testing shall be done in accordance with 7.8. 6.11.3 Correct and reliable connection between facepiece and othe
47、r parts of the equipment shall be assured. Testing shall be done in accordance with 7.3. 6.12 Inhalation valves and exhalation valves 6.12.1 General Valve assemblies shall be such that they can be readily maintained and correctly replaced. It shall not be possible to fit an exhalation valve assembly
48、 into the inspiratory circuit or an inhalation valve assembly into the exhalation circuit. Inhalation and exhalation valve assemblies, sub-assemblies and piece parts that are by the manufacturer designed to be identical, are acceptable. Differently designed inhalation and exhalation valves are accep
49、table if a precise and comprehensible description is given in the information manual supplied by the manufacturer. The description in the information manual supplied by the manufacturer should be supported by illustrations (photographs, drawings) on how to assemble the unit correctly. To enable correct assembly, the parts have to be precisely and comprehensibly described or marked. An appropriate method of checking correct assembly shall be described, e.g. visual inspection; check by the wearer; test by maintenance personnel
