EN 14404-2004 en Personal protective equipment - Knee protectors for work in the kneeling position (Incorporates Amendment A1 2010)《个人防护设备 跪射姿势工作使用的护膝 包含修改件A1-2010》.pdf

1、BRITISH STANDARD BS EN 14404:2004 +A1:2010 Personal protective equipment Knee protectors for work in the kneeling position ICS 13.340.10 National foreword This British Standard is the UK implementation of EN 14404:2004+A1:2010. It supersedes BS EN 14404:2004 which is withdrawn. The start and finish

2、of text introduced or altered by amendment is indicated in the text by tags. Tags indicating changes to CEN text carry the number of the CEN amendment. For example, text altered by CEN amendment A1 is indicated by !“. The UK participation in its preparation was entrusted by Technical Committee PH/3,

3、 Protective clothing, to Subcommittee PH/3/1, clothing for protection against general hazards. A list of organizations represented on this subcommittee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are resp

4、onsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. BS EN 14404:2004+A1:2010 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 18 November 2004 BSI 2010 Amendments/corrigenda is

5、sued since publication Date Comments 31 March 2010 Implementation of CEN amendment A1:2010 ISBN 978 0 580 59172 3 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 14404:2004+A1 January 2010 ICS 13.340.50 Supersedes EN 14404:2004 English Version Personal protective equipment - Knee protectors for

6、 work in the kneeling position quipements de protection individuelle - Protection des genoux pour le travail genoux Persnliche Schutzausrstung - Knieschutz fr Arbeiten in kniender Haltung This European Standard was approved by CEN on 2 September 2004 and includes Amendment 1 approved by CEN on 28 No

7、vember 2009. 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 lists and bibliographical references concerning such national standards may be

8、obtained on application to the CEN Management Centre 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 responsibility of a CEN member into its own language and notified to the CEN Ma

9、nagement Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Neth

10、erlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2010 CEN All rights of exploitation

11、 in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 14404:2004+A1:2010: EEN 14404:2004+A1:2010 (E) 2 Contents page Foreword 3 Introduction .4 1 Scope 5 2 Normative references 5 3 Terms and definitions .5 4 Performance levels 6 5 Requirements .6 5.1 General requirem

12、ents 6 5.2 Requirements for knee protectors .6 5.3 Optional requirements water resistance . 12 5.4 Ergonomic requirements . 12 6 Test methods . 12 6.1 General . 12 6.2 Products for testing 12 6.3 Conditioning 12 6.4 Examination . 13 6.5 Penetration resistance . 13 6.6 Force distribution . 13 6.7 Imp

13、act testing 16 6.8 Restraint testing 17 6.9 Water resistance of knee protectors. 18 6.10 Ergonomic testing - Wearer trials . 18 6.11 Compliance of straps . 19 7 Marking 20 8 Information to be supplied by the manufacturer . 21 Annex A (informative) Information on the problems of using knee protectors

14、 for work in the kneeling position 23 A.1 General . 23 A.2 Advice to users . 23 Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 89/686/EEC . 24 Bibliography . 25 BS EN 14404:2004+A1:2010EN 14404:2004+A1:2010 (E) 3 Foreword This docume

15、nt (EN 14404:2004+A1:2010) has been prepared by Technical Committee CEN/TC 162 “Protective clothing including hand and arm protection and lifejackets”, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identi

16、cal text or by endorsement, at the latest by July 2010, and conflicting national standards shall be withdrawn at the latest by July 2010. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held respons

17、ible for identifying any or all such patent rights. This document includes Amendment 1, approved by CEN on 2009-11-28. This document supersedes EN 14404:2004. The start and finish of text introduced or altered by amendment is indicated in the text by tags ! “ This document has been prepared under a

18、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 of this document. According to the CEN/CENELEC Internal Regulati

19、ons, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,

20、 Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. BS EN 14404:2004+A1:2010EN 14404:2004+A1:2010 (E) 4 Introduction Kneeling is an unnatural working position. Without knee protectors, workers may suffer discomfort and immediate injurie

21、s from hard surfaces and small stones and similar objects lying on the surfaces. However no knee protector can ensure that workers will not suffer medical complications if they are required to kneel for long periods. It is important that knee protectors do not compromise venous drainage in the leg w

22、hile kneeling or standing up. Therefore it is important that it is easy for workers to change position and to stand up to re-establish a normal blood circulation at frequent intervals while wearing knee protectors. Work in a kneeling position involves the risk of chronic diseases such as prepatellar

23、 bursitis and cartilage injuries caused by continuous pressure on the knees. Knee protection is therefore recommended for all work in the kneeling position. The protection should distribute forces evenly and prevent small hard objects on the ground causing injuries. Many workers have pre-existing da

24、mage to their knees particularly to their cartilages from sports injuries and from previous work. These injuries will be made worse by further kneeling, but knee protectors should slow the process. Work in a kneeling position may expose the skin of the shins, knees and thighs to toxic and corrosive

25、materials normally kept off the body while walking and standing by waterproof or water-resistant footwear. Knee protectors and trousers for use with such wet materials and particularly wet cement, should take this into account and provide adequate protection, as does footwear. Knee protectors incorp

26、orated into trousers or attached to trousers or worn over trousers or on the bare knees should remain in place while kneeling down, and while shuffling (walking) on the knees. Their size should ensure that they protect the knees during movement. !deleted text“ BS EN 14404:2004+A1:2010EN 14404:2004+A

27、1:2010 (E) 5 1 Scope This document specifies the requirements for knee protectors for use in a kneeling position. Requirements for the marking of knee protectors and the information to be supplied by the manufacturer are given. Test methods are described and performance levels are defined. Where pro

28、tection against additional hazards is claimed, performance requirements from other applicable standards may also be applied. This standard does not apply to knee protectors that are medical devices or are intended for sports. 2 Normative references The following referenced documents are indispensabl

29、e 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 340, Protective clothing General requirements EN 863:1995, Protective clothing Mechanical propert

30、ies Test method: Puncture resistance !ISO 7000, Graphical symbols for use on equipment Index and synopsis“ 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 knee protectors devices used by people kneeling down to protect their knees 3.2 Type 1

31、knee protectors knee protectors that are independent of other clothing and fasten around the leg 3.3 Type 2 knee protectors foam plastic or other padding material in pockets on trouser legs, or permanently attached to trousers NOTE The position of Type 2 knee protectors on trousers may be fixed or a

32、djustable. 3.4 Type 3 knee protectors devices not attached to the body, but put into place as the user moves around. These may be for each knee or both knees together 3.5 Type 4 knee protectors knee protectors for one or both knees, which are parts of devices with additional functions such as a fram

33、e to aid standing up, or a kneeling seat. The knee protectors may be worn on the body or be independent 3.6 fastening part of a knee protector, which keeps it in the right position BS EN 14404:2004+A1:2010EN 14404:2004+A1:2010 (E) 6 3.7 zone of protection !contact surface between knee protector and

34、knee and/or leg, on which weight is put on while the user is kneeling, that is intended to provide protection according to the information provided by the manufacturer and is subject to specific testing“ 3.8 centre of the back of the knee junction of the skin of the thigh and the shin when the knee

35、is flexed to an angle of 90 at the centre of the popliteal fossa 4 Performance levels !Three“ performance levels are defined by performance requirements in laboratory tests given in Clauses 5 and 6. NOTE Performance levels are defined by the severity of the test conditions. ! level 0 knee protectors

36、 suitable only for use on flat floor surfaces and providing no protection against penetration. level 1 knee protectors suitable for use on flat or non-flat floor surfaces and providing protection against penetration at a force of at least (100 5) N. level 2 knee protectors suitable for use on flat o

37、r non-flat floor surfaces in severe conditions and providing protection against penetration at a force of at least (250 10) N.“ 5 Requirements 5.1 General requirements Knee protectors shall meet a general requirement that they are safe to use and fit for their purpose. They shall be designed and man

38、ufactured to provide protection when used according to the manufacturers instructions, without endangering the user. Knee protectors shall meet the innocuousness requirements of EN 340. There shall not be hard or sharp edges, seams, buckles or other items on the inner surfaces of the products that c

39、ould harm the user during normal use. Examination shall be made according to 6.4. Construction materials and incorporated substances shall not harm those coming into contact with them. The manufacturer shall list in the information supplied with the product, the substances used in the main component

40、s of the product, and shall label any product containing substances or preparations generally known to be hazardous, as defined in EN 340. 5.2 Requirements for knee protectors 5.2.1 Summary of specific requirements Table 1 summarizes the specific requirements for the different Types of knee protecto

41、rs. !These requirements apply to all the levels (0, 1 and 2) unless it is stated otherwise in the specific clause.“ BS EN 14404:2004+A1:2010EN 14404:2004+A1:2010 (E) 7 Table 1 Summary of specific requirements for types of knee protector and the tests applicable Requirement Type of protector to which

42、 the requirement applies Clauses describing the tests applicable Clause number Subject 5.1 Innocuousness All Types EN 340 and 6.3.1 + 6.4 5.2.2 Type 4 protectors to meet requirements for Type 1 or Type 3 protectors as applicable Type 4 - 5.2.3 Size designation and marking All Types 6.3.1 + 6.4 5.2.4

43、 Dimensions All Types 6.3.1 + 6.4 5.2.5 Penetration resistance (Performance levels 1 and 2) All Types 6.3.1 + 6.5 (EN 863:1995) 5.2.6 Force distribution !deleted text“ All Types 6.3.2 + 6.3.1 + 6.6 5.2.7 Peak transmitted force in impact !deleted text“ All Types 6.3.2 + 6.3.1 + 6.7 5.2.8.1 General re

44、quirements for restraint Type 1, Type 2 and Type 4 a6.4 + 8 5.2.8.2 Restraint by straps or equivalent system Type 1. Type 4 a6.3.1 + 6.8.1 5.2.8.3 Restraint in pockets or by attachment to trousers Type 2 6.3.1 + 6.8.2 BS EN 14404:2004+A1:2010EN 14404:2004+A1:2010 (E) 8 Table 1 (concluded) Requiremen

45、t Type of protector to which the requirement applies Clauses describing the tests applicable Clause number Subject 5.3 Optional requirement for water resistance Any type for which the claim is made. (Type 2 water resistance will depend on the properties of the trousers) 6.3.1 + 6.9 Type 1, 6.9.1 Typ

46、e 3, 6.9.2 Type 4, 6.9.3 5.4 5.4.1 Ergonomics Restraint and comfort during use All Types All types 6.3.1 + Type 1, 6.10.1 Type 2, 6.10.2 Type 3, 6.10.3 Type 4, 6.10.4 5.4.2 Compliance of straps Type 1 and Type 4 a6.3.1 + 6.10.5 7 Marking All Types Comparison with 7 8 Information for users All Types

47、Comparison with 8 aApplicable if the Type 4 protector is of similar design to the Type of protector to which this clause applies directly. 5.2.2 Type 4 Knee protectors Type 4 knee protectors shall meet the requirements for Type 1 or Type 3 knee protectors depending on whether they are worn on the bo

48、dy or are independent, as applicable. 5.2.3 Size All knee protectors shall be marked with their size based on the waist girth of the users they are intended to fit. The sizing shall be explained in the information supplied by the manufacturers. 5.2.4 Dimensions The zones of protection shall have dimensions as specified in Table 2. The values of the dimensions shall be calculated from the waist girth of largest size of the user the protector is designed to fit, or in the case of “one size fits all” products a waist girth of !100 cm“. The shapes of the zones of prot