1、DRAFT FOR DEVELOPMENTDD CEN/TS 15676:2007Wood flooring Slip resistance Pendulum testICS 79.080; 97.150g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g
2、58DD CEN/TS 15676:2007This Draft for Development was published under the authority of the Standards Policy and Strategy Committee on 31 December 2007 BSI 2007ISBN 978 0 580 58600 2National forewordThis Draft for Development is the UK implementation of CEN/TS 15676:2007.This publication is not to be
3、regarded as a British Standard.It is being issued in the Draft for Development series of publications and is of a provisional nature. It should be applied on this provisional basis, so that information and experience of its practical application can be obtained.Comments arising from the use of this
4、Draft for Development are requested so that UK experience can be reported to the European organization responsible for its conversion to a European standard. A review of this publication will be initiated not later than 3 years after its publication by the European organization so that a decision ca
5、n be taken on its status. Notification of the start of the review period will be made in an announcement in the appropriate issue of Update Standards.According to the replies received by the end of the review period, the responsible BSI Committee will decide whether to support the conversion into a
6、European Standard, to extend the life of the Technical Specification or to withdraw it. Comments should be sent to the Secretary of the responsible BSI Technical Committee at British Standards House, 389 Chiswick High Road, London W4 4AL.The UK participation in its preparation was entrusted to Techn
7、ical Committee B/543, Round and sawn timber.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Amendments issued s
8、ince publicationAmd. No. Date CommentsTECHNICAL SPECIFICATIONSPCIFICATION TECHNIQUETECHNISCHE SPEZIFIKATIONCEN/TS 15676November 2007ICS 97.150English VersionWood flooring - Slip resistance - Pendulum testPlancher en bois - Rsistance la glissance - Essai aupenduleHolzfubden - Gleitwiderstand - Pendel
9、prfungThis Technical Specification (CEN/TS) was approved by CEN on 27 October 2007 for provisional application.The period of validity of this CEN/TS is limited initially to three years. After two years the members of CEN will be requested to submit theircomments, particularly on the question whether
10、 the CEN/TS can be converted into a European Standard.CEN members are required to announce the existence of this CEN/TS in the same way as for an EN and to make the CEN/TS availablepromptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force (i
11、n parallel to the CEN/TS)until the final decision about the possible conversion of the CEN/TS into an EN is reached.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy
12、, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Bru
13、ssels 2007 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. CEN/TS 15676:2007: E2 Contents Page Foreword3 1 Scope 4 2 Normative references 4 3 Terms and definitions .4 4 Test method4 4.1 Principle4 4.2 Apparatus .4 4.3 Calibration 10 4.4
14、 Sampling.10 4.5 Conditioning.10 4.6 Procedure .10 4.7 Calculation of test results.10 4.8 Test report 11 Annex A (informative) Measurement on wet surface.12 Bibliography 13 CEN/TS 15676:20073 Foreword This document (CEN/TS 15676:2007) has been prepared by Technical Committee CEN/TC 175 “Round and sa
15、wn timber”, the secretariat of which is held by AFNOR. 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 identifying any or all such patent rights. According to the CEN/CENELEC In
16、ternal Regulations, the national standards organizations of the following countries are bound to announce this Technical Specification: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembo
17、urg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. CEN/TS 15676:20074 1 Scope This Technical Specification specifies the method of applying the pendulum test to wood flooring, in order to determine the slip resistance. 2
18、 Normative references The following referenced documents are indispensable 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 13756:2002, Wood floorin
19、g Terminology ISO 7619-2, Rubber, vulcanised or thermoplastic Determination of indentation hardness Part 2: IRHD pocket meter method 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 13756:2002 apply. 4 Test method 4.1 Principle The measurement of slip
20、resistance on the specimen is made using the pendulum friction test equipment to evaluate the frictional properties of the specimen on the upper face. The pendulum friction test equipment incorporates a spring loaded slider made of a standard rubber attached to the end of the pendulum. On swinging t
21、he pendulum the frictional force between the slider and test surface is measured by the reduction in length of the swing using a calibrated scale. Due to the intended uses of the wood flooring the measurement is carried out on dried surface (see Annex A for wet measurement). 4.2 Apparatus 4.2.1 The
22、pendulum friction test equipment shall be manufactured as show in Figure 1. All bearings and working parts shall be enclosed as far as possible. CEN/TS 15676:20075 Key 1 C scale (126 mm sliding length) 6 levelling screw 2 F scale (76 mm sliding length) 7 test specimen holder 3 pointer 8 spirit level
23、 4 pendulum 9 vertical adjustment screw 5 rubber slider Figure 1 Pendulum friction test equipment CEN/TS 15676:20076 4.2.2 The pendulum test equipment shall have the following features: 1) a spring loaded rubber coated slider as specified in 4.2.4 to 4.2.10. It shall be mounted on the end of a pendu
24、lum arm so that the sliding edge is (510 1) mm from the axis of suspension; 2) means of setting the support column of the equipment vertical; 3) a base of sufficient mass to ensure the equipment remains stable during the test; 4) means of raising and lowering of suspension of the pendulum arm so tha
25、t the slider can: swing clear of the surface of the specimen and be set to traverse a surface over a fixed length of (126 1) mm. A gauge with this distance marked is required as shown in Figure 2. CEN/TS 15676:20077 Key 1 gauge 2 slider 3 reference edge 4 sliding length 5 actual sliding length Figur
26、e 2 Sliding length gauge CEN/TS 15676:20078 5) means of holding and releasing the pendulum arm so that it falls freely from a horizontal position; 6) a pointer of nominal length 300 mm, balanced about the axis of suspension, indicating the position of the pendulum arm throughout its forward and movi
27、ng over the circular scale. The mass of the pointer shall be not more than 85 g; 7) the friction in the pointer mechanism shall be adjustable so that, with the pendulum arm swinging freely from a horizontal position, the outward tip of the pointer may be brought to rest of the forward swing of the a
28、rm at a point (10 1) mm below the horizontal. This is the 0 reading; 8) a circular C scale, calibrated for a sliding length of 126 mm on a flat surface, marked from 0 to 150 at intervals of five units. 4.2.3 The mass of the pendulum arm, including the slider, shall be (1,50 0,03) kg. The centre of g
29、ravity shall be on the axis of the arm at a distance of (410 5) mm from the axis of suspension. 4.2.4 The slider shall consist of a rubber pad (76,2 0,5) mm wide; (25,4 1,0) mm long (in the direction of swing) and (6,4 0,5 ) mm thick, the combined mass of slider and base shall be (32 5) g. 4.2.5 The
30、 slider shall be held on a rigid base with a centre pivoting axis which shall be mounted on the end of the pendulum arm in such a way that, when the arm is at the lowest point of its swing with the trailing edge of the slider in contact with the test surface, the plane of the slider is angled at (26
31、 3) to the horizontal. In this configuration the slider can turn about its axis without obstruction to follow unevenness of the surface of the test specimens as pendulum swings. 4.2.6 The slider shall be spring-loaded against the test surface. When calibrated, the static force on the slider as set b
32、y the equipment calibration procedure shall be (22,2 0,5) N in its median position. The change in the static force on the slider shall be not greater than 0,2 N per millimetre deflection of the slider. 4.2.7 The initial resilience and hardness of the slider conform to Table 1, and shall have a certi
33、ficate of conformity including the name of the manufacturer and date of manufacturing. A slider shall be discarded when IRHD value measured in accordance ISO 7619-2 fails to conform to the requirements of the Table 1 or not later than three years after manufacture. Table 1 Properties of the slide ru
34、bber Temperature C Property 0 10 20 30 40 Resilience (%) a43 to 49 58 to 65 66 to 73 71 to 77 74 to 79 Hardness (IRHD) b53 to 65 aRebound test in accordance with ISO 4662. bInternational Rubber Hardness Degrees in accordance with ISO 48. CEN/TS 15676:20079 4.2.8 The edges of the slider shall be squa
35、re and clean-cut and the rubber free from contamination by, for example, abrasive or oil. The slider shall be stored in the dark at a temperature in the range 5 C to 20 C. 4.2.9 Before using a new slider it shall be conditioned to produce a minimum width of striking edge of 1 mm as shown in Figure 3
36、. This shall be achieved by setting up the tester and carrying out five swings on a dry surface with a friction value above 40 on the C scale. key 1 rubber slider 2 aluminium backing 3 striking edge 4 worn width 5 Section A-B (2:1) Figure 3 Slider assembly illustrating the maximum wear on striking e
37、dge CEN/TS 15676:200710 4.2.10 The slider shall be discarded when the width of the striking edge as shown in Figure 3 exceeds 3 mm or becomes excessively scored or burred. The slider can be reversed to expose a new edge, which will need to be conditioned. 4.3 Calibration The apparatus shall be recal
38、ibrated at least annually. 4.4 Sampling Obtain a representative sample of 10 specimens of the same surface family. Each specimen shall permit a test area of (136 mm 1 mm) (86 mm 1 mm) which is representative of the whole specimen. This area shall be tested using the 76 mm wide slider over a nominal
39、swept length of 126 mm, readings being taken on the C scale. In the case of large specimen, representative samples shall be cut from them for test. 4.5 Conditioning Specimens shall be conditioned during 2 weeks at (23 2) C and (50 5) % of relative humidity. 4.6 Procedure Keep the friction test equip
40、ment and slider in a room at a temperature of (23 2) C for at least 30 min before the test begins. Place the friction tester upon a firm level surface and adjust the levelling screws so that the pendulum support column is vertical. Then raise the axis of suspension of the pendulum so that the arm sw
41、ings freely and adjust the friction in the pointer mechanism so that when the pendulum arm and pointer are released from the right-hand horizontal position the pointer comes to rest at the zero position on the test scale. Before using the slider, condition it making 5 swings on the surface represent
42、ative of the measured surface. Discard any slider exceeding the requirements stipulated in 4.2.7 and 4.2.10. Rigidly locate the test specimen with its longer dimension lying in the track of the pendulum and centrally with respect to the rubber slider and to the axis on the suspension of the pendulum
43、. Ensure that the track of the slider is parallel to the long axis of the specimen across the sliding distance. Adjust the height of the pendulum arm so that in traversing the specimen, the rubber slider is in contact with it over the whole width of the slider and over the specified swept length. Re
44、lease the pendulum and pointer from the horizontal position and catch the pendulum arm on its return swing. Record the position of the pointer on the scale (the pendulum test value). Perform this operation 3 times on each sample and record the average of the three readings. 4.7 Calculation of test r
45、esults The slip resistance value is the mean pendulum value obtained on the 10 specimens recorded to the nearest 1 unit. CEN/TS 15676:200711 4.8 Test report The test report shall contain the following information: the name and address of the laboratory; the name and address of the company ordering t
46、he test; the sampling procedure and the identification of the sample; the date of delivery; the date of period of test; the material tested: finishing of the product, coating; the conditioning applied to the elements prior to testing; the mean pendulum test value of each specimen; the mean slip resi
47、stance value described in this European Standard; any change with the procedure described in this European Standard. CEN/TS 15676:200712 Annex A (informative) Measurement on wet surface For testing on wet surface apply the same procedure as for dry surface but: wet the surfaces of the specimen and t
48、he rubber slider with a copious supply of water, being careful not to disturb the slider from its set position, just after adjusting the height of pendulum arm and before releasing this pendulum; perform this operation 3 times on each sample, rewetting the specimen each time; record the average of t
49、he 3 readings. CEN/TS 15676:200713 Bibliography 1 ISO 48, Rubber, vulcanized or thermoplastic Determination of hardness (hardness between 10 IRHD and 100 IRHD) 2 ISO 4662, Rubber Determination of rebound resilience of vulcanizates CEN/TS 15676:2007DD CEN/TS 15676:2007BSI389 Chiswick High RoadLondonW4 4ALBSI British Standards InstitutionBSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at
