EN 12503-4-2016 en Sports mats - Part 4 Determination of shock absorption《运动垫-第4部分 吸震测定》.pdf

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1、BS EN 12503-4:2016Sports matsPart 4: Determination of shock absorptionBSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS EN 12503-4:2016 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 12503-4:2016. It supersedes BS EN 12503-4:20

2、13 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee SW/136/22, Sports, Playground and other Recreational Equipment - Gymnasium and Playing Field Equipment.A list of organizations represented on this committee can be obtained on request to its secretary.

3、This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 89112 0 ICS 97.220.30 Compliance with a British Standard cannot con

4、fer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 June 2016.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS EN 12503-4:2016EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN

5、12503-4 May 2016 ICS 97.220.30 Supersedes EN 12503-4:2013English Version Sports mats - Part 4: Determination of shock absorption Tapis de sport - Partie 4: Dtermination des caractristiques damortissement au choc Sportmatten - Teil 4: Bestimmung der Dmpfungseigenschaften This European Standard was ap

6、proved by CEN on 25 March 2016. 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 nationa

7、l standards may be obtained on application to the CEN-CENELEC 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

8、 and notified to the CEN-CENELEC Management 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hu

9、ngary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CE

10、NELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12503-4:2016 EBS EN 12503-4:2016EN 12503-4:2016 (E) 2 Contents Page European foreword . 3 1 Scope 4 2 Normative referen

11、ces 4 3 Principle . 4 4 Apparatus . 4 4.1 Indentors 4 4.2 Release mechanism 6 4.3 Accelerometer 6 4.4 Data capture and processing. 6 4.5 Thickness measurement 6 5 Test piece . 6 6 Conditioning and test temperature 7 7 Procedure. 7 7.1 Procedure A (types 1 to 11) . 7 7.2 Procedure B (type 12) 10 7.2.

12、1 Homogeneity test . 10 7.2.2 Shock absorption test . 11 8 Expression of results . 12 8.1 Procedure A 12 8.2 Procedure B 12 8.2.1 Homogeneity test . 12 8.2.2 Shock absorption test . 12 9 Test report 12 Bibliography . 13 BS EN 12503-4:2016EN 12503-4:2016 (E) 3 European foreword This document (EN 1250

13、3-4:2016) has been prepared by Technical Committee CEN/TC 136 “Sports, playground and other recreational facilities and equipment”, 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 identical text or by endor

14、sement, at the latest by November 2016, and conflicting national standards shall be withdrawn at the latest by November 2016. 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 responsible for ide

15、ntifying any or all such patent rights. This document supersedes EN 12503-4:2013. In relation to EN 12503-4:2013, the following main changes have been made: a) Normative references updated; b) Requirement and test method for high-jump and pole vault mats precised (Type 9, 10 and 11). EN 12503, Sport

16、s mats consists of the following parts: Part 1: Gymnastic mats, safety requirements Part 2: Pole vault and high jump mats, safety requirements Part 3: Judo mats, safety requirements Part 4: Determination of shock absorption Part 5: Determination of the base friction Part 6: Determination of the top

17、friction Part 7: Determination of static stiffness According to the CEN/CENELEC Internal Regulations, 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,

18、 Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 12503-4:2016EN 12503-4:2016 (E

19、) 4 1 Scope This European Standard specifies a method of test for the determination of shock absorption characteristics of sports mats types 1 to 8 of EN 12503-1:2013, 9 to 11 of EN 12503-2:2016 and 12 of EN 12503-3:2001. 2 Normative references The following documents, in whole or in part, are norma

20、tively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 12390-3, Testing hardened concrete Part 3: Compressive stre

21、ngth of test specimens ISO 6487, Road vehicles Measurement techniques in impact tests Instrumentation 3 Principle An indentor is dropped onto the top surface of the mat and the deceleration during the impact monitored. The deceleration profile is processed to yield specified shock absorption paramet

22、ers. 4 Apparatus 4.1 Indentors Metal indentors in accordance with the essential dimensions and masses are given in Table 1 and Figure 1 and Figure 2. Table 1 Indentors Type of mat Diameter mm Mass kg 1 150 0,5 10 0,1 2 150 0,5 10 0,1 3 150 0,5 10 0,1 4 150 0,5 20 0,2 5 150 0,5 20 0,2 6 150 0,5 20 0,

23、2 7 150 0,5 30 0,3 8 150 0,5 30 0,3 9 150 0,5 30 0,3 10 150 0,5 30 0,3 11 150 0,5 30 0,3 12 43 0,2 78 0,2 116 0,2 8 0,05 BS EN 12503-4:2016EN 12503-4:2016 (E) 5 Dimensions in millimetres Key 1 additional mass (10 0,1) kg 2 additional mass (10 0,1) kg 3 cable port 4 mass (10 0,1) kg 5 space for accel

24、erometer SR spherical radius Figure 1 Indentors BS EN 12503-4:2016EN 12503-4:2016 (E) 6 Dimensions in millimetres Key 1 accelerometer d diameter (see Table 1) SR spherical radius Figure 2 Indentors for judo mats 4.2 Release mechanism Means of releasing the indentor to permit it to fall smoothly, ver

25、tically. 4.3 Accelerometer An accelerometer rigidly mounted on the indentor as indicated in Figure 1 and Figure 2. 4.4 Data capture and processing Instrumentation to record, display and process the accelerometer signals to produce the required shock absorption parameters, having a channel frequency

26、class, including the accelerometer, of 1 000 in accordance with ISO 6487and sampling frequency of not less than 10 kHz. 4.5 Thickness measurement Means of measuring the thickness of the mat to an accuracy of ( 5) mm (for types 9 to 11). 5 Test piece 5.1 For mats type 1 to 8 and type 12 the test piec

27、e is a whole mat laid on a smooth, solid concrete floor measuring at least 1 m 1 m. For mats of type 9 to 11 the test piece is a complete mat ready for use. The mat may be supported on a raised platform in use, but this not part of test specified in this standard. 5.2 For mats type 1 to 8 and type 1

28、2 the laboratory test floor shall be fully supported concrete (i.e. not a suspended floor) with a minimum thickness of 100 mm. The compressive strength of the concrete shall be not less than 40 MPa when tested in accordance with EN 12390-3. BS EN 12503-4:2016EN 12503-4:2016 (E) 7 Mats of type 9 to 1

29、1 can be tested on their designated ground. The mat may be supported on a raised platform in use, but this not part of test specified in this standard. 6 Conditioning and test temperature Condition the test piece for a minimum of 24 h at (21 3) C immediately before the test and carry out the test at

30、 the same temperature. 7 Procedure 7.1 Procedure A (types 1 to 11) Carry out tests on mats types 1 to 8 at the eight locations indicated in Figure 3. Dimensions in centimetres Figure 3 Procedure A (types 1 to 8) Test location and number of tests Carry out tests on mats types 9 and 10 at the eight lo

31、cations indicated in Figure 4. BS EN 12503-4:2016EN 12503-4:2016 (E) 8 Dimensions in centimetres Key a length of the mat b width of the mat Figure 4 Procedure A (types 9 and 10) Test location and number of tests Carry out tests on mats types 11 at the eight locations indicated in Figure 5. BS EN 125

32、03-4:2016EN 12503-4:2016 (E) 9 Dimensions in centimetres Key a width of the mat b length of the mat 1 to 8 test location Figure 5 Procedure A (type 11) - Test location and number of tests The fall height shall be as detailed in Table 2. Table 2 Test fall heights Dimensions in millimetres Type of mat

33、 Fall height 1 150 1,0 2 300 1,0 3 400 1,0 4 800 1,0 5 800 1,0 6 800 1,0 7 800 1,0 8 800 1,0 9 1 200 1,0 10 1 200 1,0 11 (measurement point 1 according to Figure 5) 1 200 1,0 11 (measurement point 2 according to Figure 5) 800 1,0 BS EN 12503-4:2016EN 12503-4:2016 (E) 10 For tests on types 1 and 2 ma

34、ts, a metal frame with dimensions of 450 mm 350 mm and a minimum mass of 5,0 kg shall be placed centrally on the test piece during the tests to ensure that the test piece is flat. For tests on types 9, 10, 11 mats, determine the thickness of the mat (without under construction) centrally along each

35、side and calculate the mean thickness. Raise the indentor to the required height and lock into position. Release the indentor and allow it to fall vertically onto the test piece. Record the signal from the accelerometer throughout the impact. Display the recorded signal and examine the traces to ens

36、ure that they contain no spurious peaks, etc. Process the data to obtain the following parameters: a) peak deceleration during the impact (g); b) deflection of the surface (in mm) for mat types 1 to 8, percentage deflection of the surface (in %) for mat types 9 to 12; c) resilience of the tested sur

37、face, in %. NOTE 1 The velocity and deflection during impact is obtained by successive integration. NOTE 2 Resilience is calculated from the ratio of the squares of the velocities after and before impact, expressed as a percentage. Carry out 10 tests at each test location. Carry out the tests at eac

38、h location at intervals of 1 min to 2 min. 7.2 Procedure B (type 12) 7.2.1 Homogeneity test Carry out the tests at the eight locations indicated in Figure 6. Carry out the tests using the 78 mm diameter indentor from a fall height of 400 mm. Raise the indentor to the required height and lock into po

39、sition. Release the indentor and allow it to fall vertically onto the test piece. Record the signal from the accelerometer throughout the impact. Display the recorded signal and examine the traces to ensure that they contain no spurious peaks, etc. Process the data to obtain the peak deceleration va

40、lue (g). Carry out five tests at each test location. Carry out the tests at each location at intervals of 1 min to 2 min. BS EN 12503-4:2016EN 12503-4:2016 (E) 11 Dimensions in centimetres Figure 6 Procedure B (type 12) - Test location and number of tests 7.2.2 Shock absorption test Carry out the te

41、sts at the eight locations shown in Figure 6. The fall heights and indentors shall be as detailed in Table 3. Table 3 Test fall heights and indentors Dimensions in millimetres Test point Indentor Diameter Fall height B1 43 200 1,0 B2 43 600 1,0 B3 116 200 1,0 B4 116 600 1,0 B5 43 200 1,0 B6 43 600 1

42、,0 B7 116 200 1,0 B8 116 600 1,0 Raise the indentor to the required height and lock into position. Release the indentor and allow it to fall vertically onto the test piece. Record the signal from the accelerometer throughout the impact. Display the recorded signal and examine the traces to ensure th

43、at they contain no spurious peaks, etc. Process the data to obtain the following parameters: a) peak deceleration during the impact (g); b) deflection of the surface, in mm; c) resilience of the tested surface, in %. NOTE 1 The velocity and deflection during impact is obtained by successive integrat

44、ion. BS EN 12503-4:2016EN 12503-4:2016 (E) 12 NOTE 2 Resilience is calculated from the ratio of the squares of the velocities after and before impact, expressed as a percentage. Carry out five tests at each test location. Tests at each location shall be carried out at intervals of 1 min to 2 min. 8

45、Expression of results 8.1 Procedure A Each test location being tested 10 times, the retained value for each point is the mean value of the last eight values. Then, calculate the overall mean values, for each parameter, which are the mean values of the values obtained at each of the eight test locati

46、ons. For types 9 to 11 and for the measurement points 1 to 6 of type 11 express the deflection as a percentage of the mat thickness. 8.2 Procedure B 8.2.1 Homogeneity test Each test location being tested five times, the retained value for each point is the mean value of the last three values. Then,

47、calculate the difference between each of the eight individual points and the overall mean value. 8.2.2 Shock absorption test Each test location being tested five times, the retained value for each point is the mean value of the last three values. Calculate the overall mean values, for each parameter

48、, form the mean values of each two series of tests undertaken using similar conditions (B1 B5, B2 B6, B3 B7, B4 B8). 9 Test report The test report shall contain the following: a) reference to this European Standard, EN 12503-4; b) complete identification of the mats tested including type, manufactur

49、ers reference and date of fabrication; c) the temperature of test; d) the indentor used; e) the fall heights used; f) the thickness of mats type 9, 10, 11; g) the mean values of the parameters measured; h) the individual mean values for each location; i) the individual test values, if required; j) details of any deviation from the procedure. BS EN 12503-4:2016EN 12503-4:2016 (E) 13 Bibliography 1 EN 12503-1, Sports mats