1、BRITISH STANDARD BS EN ISO 19953:2004 Footwear Test methods for heels Resistance to lateral impact The European Standard EN ISO 19953:2004 has the status of a British Standard ICS 61.060 BS EN ISO 19953:2004 This British Standard was published under the authority of the Standards Policy and Strategy
2、 Committee on 2 August 2004 BSI 2 August 2004 ISBN 0 580 44186 5 National foreword This British Standard is the official English language version of EN ISO 19953:2004. It is identical with ISO 19953:2004 The UK participation in its preparation was entrusted to Technical Committee TCI/69, Footwear an
3、d leather, which has the responsibility to: 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 publications referred to in this document may be found in the BSI Catalogue
4、under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct
5、application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informe
6、d; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN ISO title page, pages 2 to 7 and a back cover. The BSI copyright notice displayed in this document indicates when the docume
7、nt was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM ENISO19953 July2004 ICS61.060 Englishversion FootwearTestmethodsforheelsResistancetolateralimpact (ISO19953:2004) ChaussuresMthodesdessairelativesauxtalons Rsistanceauxchocsla
8、traux(ISO19953:2004) SchuhePrfverfahrenfrAbstzeWiderstandgegen seitlichenSchlag(ISO19953:2004) ThisEuropeanStandardwasapprovedbyCENon10December2003. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwi
9、thoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibility
10、ofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusast heofficial versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France, Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Nether
11、lands,Norway,Poland,Portugal, Slovakia, Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2004CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwid
12、eforCENnationalMembers. Ref.No.ENISO19953:2004:EEN ISO 19953:2004 (E) 2 Contents page Foreword3 1 Scope4 2 Apparatus and material.4 2.1 General4 2.2 Lateral impact tester4 2.3 Metal mounting trays.6 2.4 Metal alloy.6 3 Sampling and conditioning.6 4 Test method6 4.1 Principle6 4.2 Procedure.7 5 Expre
13、ssion of results7 6 Test report7 EN ISO 19953:2004 (E) 3 Foreword This document (EN ISO 19953:2004) has been prepared by Technical Committee CEN /TC 309, “Footwear“, the secretariat of which is held by AENOR, in collaboration with ISO/TC 216 “Footwear“. This European Standard shall be given the stat
14、us of a national standard, either by publication of an identical text or by endorsement, at the latest by January 2005, and conflicting national standards shall be withdrawn at the latest by January 2005. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the
15、following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, S
16、weden, Switzerland and United Kingdom. EN ISO 19953:2004 (E) 4 1 Scope This European Standard specifies a test method for determining the impact strength of the heels of ladies shoes. The result provides an assessment of the liability to failure under the occasional heavy blows received during wear.
17、 NOTE While the test method is applicable to all types of high heels, of whatever construction, it is particularly useful for injection-moulded plastics heels which incorporate a steel dowel reinforcement, giving information on the suitability of the dowels hardness or softness. Normally, heels whic
18、h by virtue of their shape have a high lateral impact resistance do not need to be tested in this way. 2 Apparatus and material 2.1 General The following apparatus and material shall be used. 2.2 Lateral impact tester 2.2.1 General An example of a suitable apparatus is being shown in Figure 1. The a
19、pparatus is clamped either onto a solid built-in bench, or onto a rigid free-standing frame anchored to the floor. The lateral impact tester shall include the following. 2.2.2 Pendulum, consisting of a circular steel bob of diameter (108 1) mm and thickness (49 2) mm, which is fixed by a circular st
20、eel shaft of diameter (25 0,5) mm to a hub, on the bearing axle of diameter (75 1) mm. The distance from the centre of the bob to the centre of the hub is (432 2) mm. The moment of the pendulum when it is held horizontally is (17,3 0,2) Nm. 2.2.3 Striker head, consisting of a strip of metal (6,0 0,5
21、) mm thick, (25,0 0,5) mm wide and (35 2) mm long with the striking edge rounded to a radius of (3,0 0,5) mm. The head is fixed rigidly to the pendulum bob so that the striker tip and centre of the bob lie on the same circle of swing of the pendulum and are (89 2) mm apart. 2.2.4 Energy scale for th
22、e pendulum, calibrated in increment of 0,68 J, from 0 J to 18,3 J. A marker attached to the pendulum moves over this scale and enables the pendulum to be set up to the desired energy of blow. 2.2.5 Base clamp, for holding the metal mounting tray (3.2) and for adjusting it vertically and horizontally
23、 to achieve correct allignment of the heel tip. NOTE If the apparatus is not firmly mounted there is partial loss of energy on impact, thereby producing false results. EN ISO 19953:2004 (E) 5 Dimensions in millimetres Key 1 Striker head 4 Energy scale 2 Heel tray 5 Pendulum 3 Base clamp 6 Test speci
24、men Figure 1 Lateral impact tester EN ISO 19953:2004 (E) 6 2.3 Metal mounting trays An example of a suitable apparatus is shown in Figure 2. Each to contain a heel set in metal alloy of melting point between 100 C and 150 C. Figure 2 Metal mounting tray with heel in position before addition of molte
25、n alloy 2.4 Metal alloy Melting point between 100 C and 150 C. 3 Sampling and conditioning 3.1 Take free heels and set each heel in a dry metal mounting tray (3.2), using the procedure described in 3.2 or, for very short heel (usually those below 40 mm in height), the procedure described in 3.3, to
26、obtain a test specimen assembly. 3.2 Place the heel centrally in the tray so that the seat breast edge is against a flat end of the tray and the heel tip points upwards (see Figure 2). Heat the metal alloy (3.3) until it is at the lowest temperature at which it will flow into all parts of the tray,
27、filling the space around the heel to within 3 mm from the top. Allow the alloy to cool and set thereby providing a rigid mounting for the heel. 3.3 Since some very short heels cannot be struck correctly by the striker if mounted in accordance with 4.2 (because the bottom of the pendulum catches the
28、base clump assembly), a different method of mounting is necessary. In such cases mount the heel with the rear of the heel seat against a flat end of the tray. Cut a small amount from the rear of the heel so as to set the heel further towards the rear of the mounting tray if this allows the striker t
29、o strike the heel correctly. 4 Test method 4.1 Principle A heel, clamped with the tip uppermost and the stem approximately vertical, is subjected repeatedly to measured blows from a pendulum striker, the energy of the blows increasing successively until the heel fails. EN ISO 19953:2004 (E) 7 4.2 Pr
30、ocedure 4.2.1 Position the test specimen assembly in the lateral impact tester (2.2) sliding the assembly up the inclined plane of the base clamp (2.1.5) as far as possible and locking into position with the back of the heel facing the pendulum. Set the test specimen assembly at a suitable angle to
31、the horizontal so that the blow will be applied at right angles to the heel stem. Adjust the clamp so that the heel just contacts the striker when the pendulum is vertical, with the tip of the heel 6 mm above the striker tip. 4.2.2 Lift the pendulum to the 0,68 J position and release, so that the st
32、riker (2.1.3) falls against the heel stem. Catch the pendulum on its rebound to prevent a second blow. Repeat this procedure, increasing the impact energy at each blow by 0,68 J either until the heel stem breaks, until it bends and the pendulum jams, or until an impact energy of 18,3 J has been appl
33、ied. Record total number of blows delivered. 4.2.3 Damage involving fracture or cracking of the heel at the point of impact of the striker is regarded as invalid in this test, since it is due to the effect of the striker acting as a chisel rather than fracture of the heel due to impact of the heel a
34、s in wear. If such damage occurs, report it together with this explanation. 4.2.4 Repeat the test with the other two test specimen assemblies by following the same procedure. 5 Expression of results Express the result for each test specimen assembly as follows: a) the number of blows to failure (or
35、that no failure occurred after 27 blows) and the energy, in J, of the last blow; b) the type of failure, as described in 4.2.2, or the fact that damage involving fracture or cracking of the heel at the point of the impact occurred, as described in 4.2.3. 6 Test report The test report shall include t
36、he following information: a) result for each heel, expressed in accordance with clause 5; b) full description of the samples tested, including commercial styles codes, colours, nature, etc.; c) reference to this method of test; d) date of testing; e) any deviation from this test method. BS EN ISO 19
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