1、September 2016 English price group 10No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 97.220.30!%Zp“2555877www.din.d
2、eDIN EN 12503-4Sports mats Part 4: Determination of shock absorption;English version EN 12503-4:2016,English translation of DIN EN 12503-4:2016-09Sportmatten Teil 4: Bestimmung der Dmpfungseigenschaften;Englische Fassung EN 12503-4:2016,Englische bersetzung von DIN EN 12503-4:2016-09Tapis de sport P
3、artie 4: Dtermination des caractristiques damortissement au choc;Version anglaise EN 12503-4:2016,Traduction anglaise de DIN EN 12503-4:2016-09SupersedesDIN EN 12503-4:2013-11www.beuth.deDocument comprises 15 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shal
4、l be considered authoritative.08.16 DIN EN 12503-4:2016-09 2 A comma is used as the decimal marker. National foreword This document (EN 12503-4:2016) has been prepared by Technical Committee CEN/TC 136 “Sports, playground and other recreational facilities and equipment”, Working Committee WG 22 “Gym
5、nastic and playing field equipment” (Secretariat: DIN, Germany). The responsible German body involved in its preparation was DIN-Normenausschuss Sport- und Freizeitgert (DIN Standards Committee Sports Equipment), Working Committee NA 112-01-02 AA Turngerte, Matten und Spielfeldgerte. Amendments This
6、 standard differs from DIN EN 12503-4:2013-11 as follows: a) normative references have been updated; b) requirements and test procedures for high jump and pole vault mats (type 9, type 10 and type 11) have been described in more detail. Previous editions DIN 7913-1: 1976-08 DIN 7914-1: 1976-08, 1987
7、-01 DIN 7916-1: 1976-08 DIN 7914-2: 1981-10 DIN 7914-3: 1991-06 DIN 7914-4: 1991-06 DIN EN 12503-4: 2001-07, 2013-11 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12503-4 May 2016 ICS 97.220.30 Supersedes EN 12503-4:2013English Version Sports mats - Part 4: Determination of shock absorption T
8、apis de sport - Partie 4: Dtermination des caractristiques damortissement au choc Sportmatten - Teil 4: Bestimmung der Dmpfungseigenschaften This European Standard was approved by CEN on 25 March 2016. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the cond
9、itions 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 obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exist
10、s 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-CENELEC Management Centre has the same status as the official versions. CEN members are the national stan
11、dards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Sl
12、ovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserv
13、ed worldwide for CEN national Members. Ref. No. EN 12503-4:2016 EEN 12503-4:2016 (E) 2 Contents Page European foreword . 3 1 Scope 4 2 Normative references 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 m
14、easurement 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 7.2.1 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 .
15、 12 8.2.2 Shock absorption test . 12 9 Test report 12 Bibliography . 13 DIN EN 12503-4:2016-09 EN 12503-4:2016 (E) 3 European foreword This document (EN 12503-4:2016) has been prepared by Technical Committee CEN/TC 136 “Sports, playground and other recreational facilities and equipment”, the secreta
16、riat 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 endorsement, at the latest by November 2016, and conflicting national standards shall be withdrawn at the latest by November 2016. Attention is draw
17、n 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 identifying any or all such patent rights. This document supersedes EN 12503-4:2013. In relation to EN 12503-4:2013, the following main changes ha
18、ve 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, Sports mats consists of the following parts: Part 1: Gymnastic mats, safety requirements Part 2: Pole vault and high jump mats, safety requirements
19、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 friction Part 7: Determination of static stiffness According to the CEN/CENELEC Internal Regulations, the national standards organizations of t
20、he following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Nether
21、lands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 12503-4:2016-09 EN 12503-4:2016 (E) 4 1 Scope This European Standard specifies a method of test for the determination of shock absorption characteristics of sports mats typ
22、es 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 normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For un
23、dated references, the latest edition of the referenced document (including any amendments) applies. EN 12390-3, Testing hardened concrete Part 3: Compressive strength of test specimens ISO 6487, Road vehicles Measurement techniques in impact tests Instrumentation 3 Principle An indentor is dropped o
24、nto the top surface of the mat and the deceleration during the impact monitored. The deceleration profile is processed to yield specified shock absorption parameters. 4 Apparatus 4.1 Indentors Metal indentors in accordance with the essential dimensions and masses are given in Table 1 and Figure 1 an
25、d 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 0,2 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 DIN EN 12503-4:20
26、16-09 EN 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 accelerometer SR spherical radius Figure 1 Indentors DIN EN 12503-4:2016-09 EN 12503-4:2016 (E) 6 Dimensions in millimetres Key 1 accelero
27、meter 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, vertically. 4.3 Accelerometer An accelerometer rigidly mounted on the indentor as indicated in Figure 1 and Figure 2. 4.4 Data capt
28、ure and processing Instrumentation to record, display and process the accelerometer signals to produce the required shock absorption parameters, having a channel frequency class, including the accelerometer, of 1 000 in accordance with ISO 6487and sampling frequency of not less than 10 kHz. 4.5 Thic
29、kness 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 piece 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
30、 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 12 the laboratory test floor shall be fully supported concrete (i.e. not a suspended floor) with a minimum thickness of 100 mm. T
31、he compressive strength of the concrete shall be not less than 40 MPa when tested in accordance with EN 12390-3. DIN EN 12503-4:2016-09 EN 12503-4:2016 (E) 7 Mats of type 9 to 11 can be tested on their designated ground. The mat may be supported on a raised platform in use, but this not part of test
32、 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 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 locati
33、ons 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 locations indicated in Figure 4. DIN EN 12503-4:2016-09 EN 12503-4:2016 (E) 8 Dimensions in centimetres Key a length of the m
34、at 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. DIN EN 12503-4:2016-09 EN 12503-4:2016 (E) 9 Dimensions in centimetres Key a width of the mat b length of the mat 1 to 8 test l
35、ocation 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 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
36、 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 DIN EN 12503-4:2016-09 EN 12503-4:2016 (E) 10 For tests on types 1 and 2 mats, a metal frame with dimensions of 450 mm 350 mm and a minimum mass of 5,0 kg shall be placed centrally on
37、 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 side and calculate the mean thickness. Raise the indentor to the required height and lock into position. Rel
38、ease 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 following parameters: a) peak d
39、eceleration 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 surface, in %. NOTE 1 The velocity and deflection during impact is obtained by successive integration. NOTE 2 R
40、esilience 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 each location at intervals of 1 min to 2 min. 7.2 Procedure B (type 12) 7.2.1 Homogeneity test Carry out the te
41、sts 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 position. Release the indentor and allow it to fall vertically onto the test piece. Record the signal from the
42、 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 value (g). Carry out five tests at each test location. Carry out the tests at each location at intervals of 1
43、min to 2 min. DIN EN 12503-4:2016-09 EN 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 tests at the eight locations shown in Figure 6. The fall heights and indentors shall be as detailed in Ta
44、ble 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 1,0 B7 116 200 1,0 B8 116 600 1,0 Raise the indentor to the required height and lock into position. Rele
45、ase 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 following parameters: a) peak de
46、celeration 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 integration. DIN EN 12503-4:2016-09 EN 12503-4:2016 (E) 12 NOTE 2 Resilience is calculated from the ratio of th
47、e 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 Expression of results 8.1 Procedure A Each test location being tested 10 times, the retained value
48、 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 locations. For types 9 to 11 and for the measurement points 1 to 6 of type 11 express the deflection as
49、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, calculate the difference between each of the eight individual points and the overall mean value. 8.2.2 Shock absorption test Each test locatio
