1、BRITISH STANDARDBS EN 1731:2006Personal eye protection Mesh eye and face protectorsThe European Standard EN 1731:2006 has the status of a British StandardICS 13.040.20g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g5
2、3g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 1731:2006This British Standard was published under the authority of the Standards Policy and Strategy Committee on 29 December 2006 BSI 2007ISBN 0 580 49882 4National forewordThis British Standard was published by BSI. It is th
3、e UK implementation of EN 1731:2006. It supersedes BS EN 1731:1998 which is withdrawn.The UK participation in its preparation was entrusted by Technical Committee PH/2, Eye protection, to Subcommittee PH/2/2, Industrial eye protectors.A list of organizations represented on PH/2/2 can be obtained on
4、request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.Amendments issued since publicationAmd. No. Date Commen
5、tsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 1731November 2006ICS 13.040.20 Supersedes EN 1731:1997 English VersionPersonal eye protection - Mesh eye and face protectorsProtection individuelle de lil - Protecteurs de lil et duvisage de type grillagPersnlicher Augenschutz - Augen- undGesichtss
6、chutzgerte aus GewebeThis European Standard was approved by CEN on 13 October 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and
7、bibliographical references concerning such nationalstandards 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 translationunder the responsibility
8、of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, La
9、tvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussel
10、s 2006 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 1731:2006: EEN 1731:2006 (E) 2 Contents Page Foreword3 Introduction .4 1 Scope 5 2 Normative references 5 3 Terms and definitions .5 4 Requirements.5 4.1 Materials .5 4.2 Design
11、and manufacture.6 4.3 Performance .7 4.4 Protection against high speed particles (optional)8 5 Test methods8 5.1 Resistance to corrosion of metal parts .8 5.2 Resistance to ignition .8 5.3 Luminous transmittance .8 5.4 Robustness 8 5.5 Protection against high speed particles (optional)9 5.6 Allocati
12、on of test requirements and examination test schedule for mesh eye and face protectors .9 5.7 Visual inspection .9 5.8 Test for comfort and security of fit 9 6 Designation of the field of use of mesh eye and face protectors.11 7 Marking .11 8 Information supplied by the manufacturer .12 Annex ZA (in
13、formative) Relationship between this European Standard and the Essential Requirements of EU Directive 89/686/EEC Personal Protective Equipment 13 Bibliography 15 EN 1731:2006 (E) 3 Foreword This document (EN 1731:2006) has been prepared by Technical Committee CEN/TC 85 “Eye-protective equipment”, th
14、e secretariat of which is held by AFNOR. 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 May 2007, and conflicting national standards shall be withdrawn at the latest by May 2007. This document su
15、persedes EN 1731:1997. This document 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 EU Directive(s), see informative Annex ZA, which is an integral part o
16、f this document. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland,
17、Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 1731:2006 (E) 4 Introduction Mesh eye and face protectors alone do not provide significant protection against radiation. For protection a
18、gainst infrared and/or ultraviolet radiation suitable additional or alternative oculars will be needed complying with EN 170:2002 and/or EN 171:2002 respectively. EN 1731:2006 (E) 5 1 Scope This European Standard specifies materials, design, performance requirements, test methods and marking require
19、ments for mesh eye and face protectors. This standard is not applicable to eye and face protectors for use against liquid splash (including molten metal), hot solid risks, electrical hazards, infrared and ultra violet radiation. Mesh eye and face protectors for use in sports such as ice hockey and f
20、encing are excluded. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 16
21、5:2005, Personal eye-protection Vocabulary EN 166:2001, Personal eye-protection Specifications EN 167:2001, Personal eye-protection - Optical test methods EN 168:2001, Personal eye-protection - Non-optical test methods EN 1811, Reference test method for release of nickel from products intended to co
22、me into direct and prolonged contact with the skin EN 12472, Method for the simulation of wear and corrosion for the detection of nickel release from coated items 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 165:2005 apply. 4 Requirements 4.1 Mater
23、ials 4.1.1 Resistance to corrosion No metal parts of a mesh eye and face protector, including the mesh if made from metal, shall show a significant sign of corrosion when examined by a trained observer after having undergone the test for resistance to corrosion specified in 5.1. 4.1.2 Resistance to
24、ignition When tested according to 5.2 no part of a mesh eye and face protector shall ignite or continue to glow after removal of the heated rod. EN 1731:2006 (E) 6 4.1.3 Cleaning and disinfection All parts of a mesh eye and face protector shall withstand cleaning and disinfection in accordance with
25、the agents and procedures recommended by the manufacturer. All the tests shall be carried out after subjecting the product to the cleaning and/or disinfection procedures recommended by the manufacturer. 4.1.4 Innocuousness of materials Materials that come into contact with the wearers skin shall not
26、 be known to be likely to cause irritation or any other adverse effect to health. Testing shall be done in accordance with 5.7. Those metal parts of mesh eye protectors and frames that come into direct and prolonged contact with the skin of the wearer shall have a nickel release of less than 0,5 g/c
27、m2/week when tested according to EN 1811. Coated items shall first be conditioned according to EN 12472. 4.1.5 Number of apertures in a mesh The minimum number of apertures in the mesh shall be 15 per cm. Testing shall be done in accordance with 5.7. 4.2 Design and manufacture 4.2.1 General construc
28、tion Mesh eye and face protectors shall be free from projections, sharp edges or other defects which are likely to cause discomfort or injury to the wearer during use. Testing shall be done in accordance with 5.7. 4.2.2 Headbands Headbands used as the principal means of retention shall be at least 1
29、0 mm wide over any portion which may come into contact with the wearers head, and shall be adjustable or self-adjusting. Testing shall be done in accordance with 5.7. 4.2.3 Adjustability and/or replacement of components Adjustable parts or components incorporated in mesh eye and face protectors shal
30、l be easily adjustable and where intended to shall be easily replaceable without the use of special tools. Testing shall be done in accordance with 5.7. 4.2.4 Minimum area of coverage and field of vision of a mesh face screen In the in-use position, the mesh face screen shall cover at least the faci
31、al region rectangle EFGH of the appropriate head form, defined in Figure 11 of EN 168:2001, when assessed in accordance with EN 168:2001, 10.2. EN 1731:2006 (E) 7 Field of vision requirements of EN 166:2001, 7.1.1 shall be met when the mesh face screen is tested according to EN 168:2001, Clause 18.
32、4.2.5 Minimum area of coverage and field of vision of a mesh eye protector In the in-use position, the mesh eye protector shall cover at least the facial region rectangle ABCD of the appropriate head form, defined in Figure 11 of EN 168:2001, when assessed in accordance with EN 168:2001, 10.2. Field
33、 of vision requirements shall be met when the mesh eye protector is tested according to EN 168:2001, Clause 18. The minimum dimension of ocular area(s) shall be in accordance with 7.1.1 of EN 166:2001. 4.2.6 Comfort and retention in use When subjected to the test procedure in 5.8, the mesh eye/face
34、protector shall remain in its in-use position and shall not cause significant discomfort. 4.2.7 Contact with metal parts When subjected to the test procedure in 5.8, metal parts of the mesh eye protector shall not come into direct contact with the head/face of the wearer. 4.3 Performance 4.3.1 Lumin
35、ous transmittance The luminous transmittance of the mesh ocular area shall be greater than 20,0 % when measured in accordance with 5.3. 4.3.2 Variations in luminous transmittance The variations in luminous transmittance shall be in accordance with 7.1.2.2.3 of EN 166:2001. 4.3.3 Additional or altern
36、ative oculars Additional or alternative oculars fitted to a mesh eye and face protector shall comply with 7.1 of EN 166:2001. The additional or alternative ocular shall meet or exceed the robustness or resistance to high speed particles requirements appropriate to the mesh eye protector to which it
37、is fitted. 4.3.4 Robustness The complete mesh eye and face protector shall be submitted to the impact of a steel ball striking the ocular area and the lateral protection at a specified speed. If the use of any cover and/or backing lens is recommended by the manufacturer the test shall be performed w
38、ith a mesh face screen conforming to this recommendation. Testing shall be done in accordance with 5.4. EN 1731:2006 (E) 8 The following defects shall not occur during testing: a) Mesh fracture in the ocular area: The mesh shall be considered to have fractured if the steel ball passes through the me
39、sh or if at any point in the ocular area a gap or tear is produced which will allow a (300 3) mm long and (3,0 0,1) mm diameter steel rod with end faces which are flat and perpendicular to its longitudinal axis to pass through under its own weight in any orientation. b) Ocular area deformation: The
40、mesh ocular area shall be considered to have been deformed when a mark appears on the white paper on the opposite side to that struck by the steel ball. c) Failure of ocular housing, mesh face screen or frame: An ocular housing or mesh face screen or frame shall be considered to have failed if it se
41、parates into two or more pieces, or if it is no longer capable of holding an ocular in position, or if an unbroken ocular detaches from the frame, or if the ball breaks through the housing, mesh face screen or frame. 4.4 Protection against high speed particles (optional) The protector shall fulfil t
42、he requirements for protection against high speed particles in accordance with 7.2.2 of EN 166:2001. Defects noted at 4.3.4 a), b) and c) shall not occur. A mesh face screen tested with an additional or alternative ocular shall be fitted with an ocular meeting the relevant high speed particle resist
43、ance requirements. If the use of any cover and/or backing lens is recommended by the manufacturer the test shall be performed with a mesh face screen conforming to this recommendation. Testing shall be done in accordance with 5.5. NOTE Eye-protectors offering protection against high-speed particles
44、should provide lateral protection (see 7.2.8 of EN 166: 2001). 5 Test methods 5.1 Resistance to corrosion of metal parts Testing shall be done in accordance with Clause 8 of EN 168:2001. 5.2 Resistance to ignition Testing shall be done in accordance with Clause 7 of EN 168:2001. 5.3 Luminous transmi
45、ttance Testing shall be done in accordance with Clause 6 of EN 167:2001. 5.4 Robustness Testing shall be done in accordance with 3.2 of EN 168:2001. EN 1731:2006 (E) 9 5.5 Protection against high speed particles (optional) Testing shall be done in accordance with Clause 9 of EN 168:2001. 5.6 Allocat
46、ion of test requirements and examination test schedule for mesh eye and face protectors The allocation of test requirements and examination test schedule for mesh eye and face protectors shall be as given in Table 1. 5.7 Visual inspection The visual inspection may entail a certain amount of dismantl
47、ing in accordance with the manufacturers instructions for maintenance. The visual inspection shall include the assessment of the device marking (if applicable) and information supplied by the manufacturer (if applicable) and any safety data sheets (if applicable) or declarations relevant to the mate
48、rials used in its construction. 5.8 Test for comfort and security of fit One device shall be adjusted appropriately and donned by two different test subjects. With the mesh eye/face protector in the in-use position, the following actions shall be undertaken, starting from a standing position. turn h
49、ead fully left and right; tilt head fully back and forward; standing jump on the spot five times; bend forward at the hips to touch the toes, keeping the neck in line with the back. While bent over, turn the head from side to side; observe for direct contact between the wearers head/face and any exposed metal components of the eye protector. Note any significant discomfort or insecurity of the fit of the mesh eye/face protector. EN 1731:2006 (E) 10 Table 1 Allocation of test requirements and examination test schedule for mesh eye and face protecto
