SIST EN 14231:2003

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Preskušanje naravnega kamna – Ugotavljanje odpornosti proti zdrsu – metoda z nihalomPrüfverfahren für Naturstein - Bestimmung des Gleitwiderstandes mit Hilfe des PendelprüfgerätesMéthodes d'essai pour les pierres naturelles - Détermination de la résistance a la glissance au moyen du pendule de frottementNatural stone test methods - Determination of the slip resistance by means of the pendulum tester91.100.15Mineralni materiali in izdelkiMineral materials and products73.020Rudarstvo in kamnolomsko izkopavanjeMining and quarryingICS:Ta slovenski standard je istoveten z:EN 14231:2003SIST EN 14231:2003en01-november-2003SIST EN 14231:2003SLOVENSKI
STANDARD



SIST EN 14231:2003



EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 14231April 2003ICS 73.020; 91.100.15English versionNatural stone test methods - Determination of the slip resistanceby means of the pendulum testerMéthodes d'essai pour les pierres naturelles -Détermination de la résistance à la glissance au moyen dupendule de frottementPrüfverfahren für Naturstein - Bestimmung desGleitwiderstandes mit Hilfe des PendelprüfgerätesThis European Standard was approved by CEN on 26 May 2002.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the 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 translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and UnitedKingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2003 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14231:2003 ESIST EN 14231:2003



EN 14231:2003 (E)2ContentspageForeword.31Scope.52Normative references.53Principle.54Terms and definitions.55Apparatus.66Materials.97Preparation of the specimens.97.1Sampling.97.2Dimensions of the test specimens.98Test procedure.108.1General.108.2Test procedure (in dry conditions).108.3Test procedure (in wet conditions).109Expression of results.1110Test report.11Annex A (normative) Calibration of the pendulum friction tester.13A.1Weighing of components.13A.2Balancing of the pendulum arm assembly.13A.3Setting the effective spring tension.13A.4Setting the pointer stop.13SIST EN 14231:2003



EN 14231:2003 (E)3ForewordThis document (EN 14231:2003) has been prepared by Technical Committee CEN/TC 246, "Natural stones", thesecretariat of which is held by UNI.This European Standard shall be given the status of a national standard, either by publication of an identical text orby endorsement, at the latest by October 2003, and conflicting national standards shall be withdrawn at the latestby October 2003.This draft standard is one of the series of draft standards for tests on natural stone.Test methods for natural stone consist of the following:EN 1925, Natural stone test methods - Determination of water absorption coefficient by capillarityEN 1926, Natural stone test methods - Determination of compressive strengthEN 1936, Natural stone test methods - Determination of real density and apparent density and of total and openporosityEN 12370, Natural stone test methods - Determination of resistance to crystallisation (by total immersion)EN 12371, Natural stone test methods - Determination of frost resistanceEN 12372, Natural stone test methods - Determination of flexural strength under concentrated loadEN 12407, Natural stone test methods - Petrographic descriptionEN 13161, Natural stone test methods - Determination of flexural strength under constant momentEN 13364, Natural stone test methods - Determination of the breaking load at dowel holeEN 13755, Natural stone test methods - Determination of water absorption at atmospheric pressureEN 13919, Natural stone test methods - Determination of resistance to ageing by SO2 action in the presence ofhumidityprEN 13373, Natural stone test methods – Determination of geometric characteristicsprEN 14066, Natural stones test methods - Determination of resistance to ageing by thermal shockprEN 14147, Natural stone test methods - Determination of resistance to ageing by salt mistprEN 14157, Natural stone test methods - Determination of the abrasion resistanceprEN 14158, Natural stone test methods - Determination of rupture energyprEN 14205, Natural stone test methods - Determination of Knoop hardnessprEN 14231, Natural stone test methods - Determination of the slip resistance by means of the pendulum testerprEN 14579, Natural stone test methods - Determination of sound speed propagationprEN 14580, Natural stone test methods - Determination of static elastic modulusSIST EN 14231:2003



EN 14231:2003 (E)4prEN 14581, Natural stone test methods - Determination of thermal expansion coefficientNo existing European Standard is superseded.This European Standard has an Annex A (normative).According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal,Slovakia, Spain, Sweden, Switzerland and the United Kingdom.SIST EN 14231:2003



EN 14231:2003 (E)51 ScopeThis European Standard specifies a test method to determine the slip resistance value of the surface of theexposed face of natural stone elements intended to be used for flooring in buildings.NOTE 1If the surface of the exposed face has a roughness measured according to prEN 13373 higher than 1 mm it will beconsidered as not slippery, without performing the test.NOTE 2This method may be used for laboratory measurements or on floors in service.2 Normative referencesThis European Standard incorporates by dated or undated reference, provisions from other publications. Thesenormative references are cited at the appropriate places in the text and the publications are listed hereafter. Fordated references, subsequent amendments to or revisions of any of these publications apply to this EuropeanStandard only when incorporated in it by amendment or revision. For undated references the latest edition of thepublication referred to applies.ISO 48, Rubber, vulcanized or thermoplastics – Determination of hardness (hardness between 10 IRHD and 100IRHD)ISO 4662, Rubber – Determination of rebound resilience of vulcanizatesISO 7619, Rubber – Determination of indentation hardness by means of pocket hardness meters3 PrincipleThe pendulum friction tester incorporates a spring loaded slider made of a standard rubber attached to the end ofthe pendulum. On swinging the pendulum the frictional force between slider and test surface is measured by thereduction in length of the swing using a calibrated scale.4 Terms and definitionsFor the purposes of this European Standard, the following terms and definitions apply:4.1slip resistanceis the property of the floor surface to maintain the adhesion of pedestrian footwear.NOTELoss of adhesion leads to loss of control by the pedestrian with consequent increase in the risk of falling.4.2frictionis the resistance to relative motion between two bodies in contact, in this case the slider and the test specimen orthe footwear sole and the trafficked surface. The frictional force is the force acting tangentially in the contact area.4.3slip resistance value (SRV)the pendulum friction tester incorporates a slider manufactured of rubber. It measures the friction between theslider and the test surface and provides a standardised value of the slip resistance. This is called the slip resistancevalue (SRV) and shall be measured both in dry and wet conditions.SIST EN 14231:2003



EN 14231:2003 (E)65 Apparatus5.1The pendulum friction tester shall be manufactured as shown in Figure 1. All bearings and working partsshall be enclosed as far as possible, and all materials used shall be treated to prevent corrosion under wetconditions.1 C scale (126 mm sliding length)2 F scale (76 mm sliding length)3 Pointer4 Pendulum5 Rubber slider6 Levelling screw7 Spirit level8 Vertical adjustment screw9 Test specimen holderFigure 1 — Pendulum friction testerSIST EN 14231:2003



EN 14231:2003 (E)75.2The pendulum friction tester shall have the following features:1) A spring loaded rubber coated slider as specified in clauses 5.4 to 5.10. It shall be mounted on the end of apendulum arm so that the sliding edge is (510 ± 1) mm from the axis of suspension.2) Means of setting the support column of equipment vertical.3) A base of sufficient mass to ensure that the equipment remains stable during the test.4) Means of raising and lowering the axis of suspension of the pendulum arm so that the slider can:i) swing clear of the surface of the specimen; andii) be set to traverse a surface over a fixed length of (126 ± 1) mm when using the wide slider or (76 ± 1)mm when using the narrow slider. Gauges with these distances marked are required as shown inFigure 2.1 Gauge2 Slider3 Reference edge4 Sliding length measured5 Actual sliding length6 Side view7 Plan viewFigure 2 — Sliding length gauge5) Means of holding and releasing the pendulum arm so that it falls freely from a horizontal position.6) A pointer of nominal length of 300 mm, balanced about the axis of suspension, indicating the position of thependulum arm throughout its forward swing and moving over the circular scale. The mass of the pointer shall beno
...