1、DEUTSCHE NORM November 1999 Door leaves English version of DIN EN 950 Determination of the resistance to hard body impact DIN - EN 950 ICs 91.060.50 Supersedes DIN EN 85, January 1981 edition. Trbltter - Ermittlung der Widerstandsfhigkeit gegen harten Sto European Standard EN 950 : 1999 has the stat
2、us of a DIN Standard. A comma is used as the decimal marker. National foreword This standard has been prepared by CEN/TC 33. The responsible German body involved in its preparation was the Normenausschu Bauwesen (Building and Civil Engineering Standards Committee), Technical Committee Tren, Tore, Fe
3、nster, Abschlsse, Baubeschlge und Vorhangfassaden. Amendments This standard differs from DIN EN 85, January 1981 edition, in that it has been editorially revised and more detailed specifications have been given with regard to the method of determining the resistance to hard body impact. Previous edi
4、tion DIN EN 85 : 1981 -01 EN comprises 5 pages. No pari of this standard may be reproduced without the prior permission of Ref. No. DIN EN 950 : 1999-1 V Deutsches Institut fur Normung e. V., Berlin. Luth Verlag GmbH, D-10772 Berlin, has the exclusive right of sale for German Standards (DIN-Normen).
5、 . . English price group 04 Sales No 1104 04 O0 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 950 August 1999 ICs 91.060.50 Supersedes EN 85 : 1980. English version Door leaves Determination of the resistance to hard body impact Vantaux de portes - Dtermination de la rsistance au choc de corp
6、s dur Sto Trbltter - Ermittlung der Widerstandsfhigkeit gegen harten This European Standard was approved by CEN on 1999-07-21. CEN members are bound to comply with the CENKENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard w
7、ithout 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. The European Standards exist in three official versions (English, French, German). A version in any other language
8、 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, the Czech Republic, Denmark, Finland, France, Germany, Greece,
9、Iceland, Ireland, Italy, Luxembourg, the Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, and the United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels O 1999. CEN -
10、All rights of exploitation in any form and by any means reserved worldwide for CEN national members. Ref. No. EN 950 : 1999 E Page 2 EN 950 : 1999 Foreword This European Standard has been prepared by Technical Committee CEN/TC 33 “Doors, windows, shutters and building hardware“, the secretariat of w
11、hich is held by AFNOR. This European Standard supersedes EN 85:1980. 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 February 2000, and conflicting national standards shall be withdrawn at the lat
12、est by February 2000. According to the CENKENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Net
13、herlands, Noway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. This standard is one of a series of standards for doors. This standard has been prepared taking into account IS0 8271 and EN 85. Page 3 EN 950 : 1999 1 Scope This standard applies to all door leaves. The standard specifies
14、 the method to be used to determine the damage caused to a door leaf by the impact of a hard body. NOTE : Such impacts, that might reasonably be expected from contact with small objects or parts of larger objects such as corners on furniture or footwear, can produce local surface failures affecting
15、both strength and appearance. The kind of damage caused by impact can vary with the material used in the door construction. 2 Apparatus 2.1 supports Rigid supports to support the longer edges of the door leaf in a stable manner, when mounted horizontally. 2.2 Impact equipment A (50 f 1) mm diameter
16、steel ball of known weight, and appropriate release tower. 2.3 Measuring equipment A dial or digital gauge accurate to 0,Ol mm mounted at the centre of a 50 mm long and 12 mm wide reference bar. A steel ruler accurate to 0,5 mm. 3 Test specimens Test specimens shall be stored and tested in a non-des
17、tructive environment within the ranges of 15 “C to 30 OC and 25 % to 75 % relative humidity. 4 Procedure Mount the door leaf horizontally, with rigid supports under the long edges resting on a solid base. Select one of the four aiming patterns shown in fiaure 1 such that the theoretically weakest po
18、int is included, and mark the 15 impact points on the surface of the door leaf. Any glazed area shall be omitted from the test, thereby reducing the number of impact points. Impact points in the topmost row or rows of the aiming pattern shall also be omitted where the height of the door leaf is less
19、 than 2000 mm. The test area is not extended where the height is more than 2000 mm. Page 4 EN 950 : 1999 NOTE 1 : To facilitate the setting out of the aiming pattern, templates can be made for standard sized door leaves in accordance with figure 1. Holes of approximately 8 mm diameter are drilled in
20、 the centres of the numbered rectangles so that a marker pen can be used to indicate the selected aiming pattern onto the face of the door leaf. Position the release tower vertically over each of the impact points in tum, and drop the steel ball from a height, measured from its underside to the surf
21、ace of the door leaf, which corresponds to the required impact energy. Where a permanent imprint is left by any impact, after 30 min measure the maximum depth of the indentation to the nearest 0,i rnm, the maximum diameter of the indentation to the nearest 1 ,O mm and the maximum diameter of the cra
22、cking area to the nearest 1 ,O mm. NOTE 2 : Where impacts occur at points where the surface is uneven, e.g. at mouldings, a more general assessment of damage is permitted. Repeat the procedure for the other face of the door leaf only if the door construction is not symmetrical. 5 Expression of resul
23、ts Record : - the measurement of indentation depth and diameter, and the diameter of cracking at each impact point ; - calculation of the mean values and the coefficient of variation of the depths of indentations ; - calculation of the mean values and the coefficient of variation of the diameters cr
24、acks. of 6 Testreport The test report shall contain the following information : a) reference to this standard ; b) all necessary details to identify the door leaf ; c) all relevant details concerning the type, specified dimensions, materials, form and construction of the door leaf ; d) position and
25、size of any glazed areas omitted from the test ; e) laboratory storage and testing conditions ; f) the number and position of impact points used ; g) the impact energy in joules applied in the test ; h) the results expressed as in clause 5 ; Page 5 EN 950 : 1999 i) the nature of any damage ; j) name of testing laboratory ; k) date of test. 2 3 1 1 Width of door : 10 columns 2 Total of 15 rows 3 Bottom of door 4 Main area 1 O Equal divisions 5 Base area 150 mm : 5 Equal divisions 6 2000 mm Figure 1 : Four different aiming patterns for hard body impact test, marked 1,2,3 or 4 respectively
