SIST EN 14231:2003

Natural stone test methods - Determination of the slip resistance by means of the pendulum tester

This European Standard specifies a test method to determine the slip resistance value of the surface of the exposed face of natural stone elements intended to be used for flooring in buildings.
NOTE 1   If the surface of the exposed face has a roughness measured according to prEN 13373 higher than 1 mm it will be considered as not slippery, without performing the test.
NOTE 2   This method can be used for laboratory measurements or on floors in service.

Prüfverfahren für Naturstein - Bestimmung des Gleitwiderstandes mit Hilfe des Pendelprüfgerätes

Méthodes d'essai pour les pierres naturelles - Détermination de la résistance a la glissance au moyen du pendule de frottement

La présente Norme européenne définit une méthode pour déterminer la résistance à la glissance de la face exposée des éléments en pierre naturelle prévus pour une utilisation en sols de bâtiments.
NOTE 1   Si la surface de la face exposée a une rugosité mesurée conformément au prEN 13373 supérieure à 1 mm, elle sera considérée non glissante sans exécuter l'essai.
NOTE 2   Cette méthode pourra être utilisée pour des mesures en laboratoire ou sur des sols en service.

Preskušanje naravnega kamna – Ugotavljanje odpornosti proti zdrsu – metoda z nihalom

General Information

• Status: Published
• Publication Date: 31-Oct-2003
• ICS: 73.020 - Mining and quarrying
• ICS: 91.100.15 - Mineral materials and products
• Technical Committee: KAM - Natural stone
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Nov-2003
• Due Date: 01-Nov-2003
• Completion Date: 01-Nov-2003
• Directive: 305/2011 - Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
• Directive: 89/106/EEC - Construction products
• Mandate: M/119 - Mandate to CEN/CENELEC concerning the execution of standardization work for harmonized standards on floorings
• Ref Project: EN 14231:2003 - Natural stone test methods - Determination of the slip resistance by means of the pendulum tester

Overview

EN 14231:2003 is a CEN standard that specifies a reproducible test method to determine the slip resistance of the exposed face of natural stone flooring using a pendulum friction tester. The method produces a standardized slip resistance value (SRV) for dry and wet conditions and can be applied in both laboratory and in-service (on-floor) testing. Note that surfaces with a measured roughness greater than 1 mm (prEN 13373) are considered non‑slippery and need not be tested.

Key Topics

• Test principle: A spring‑loaded rubber slider attached to a pendulum arm contacts the stone surface. Friction reduces the pendulum swing; the reduction is read on a calibrated scale and reported as SRV.
• Apparatus and scales:
  • Pendulum friction tester with pointer and circular C scale (126 mm sliding length) and F scale (76 mm sliding length).
  • Two slider sizes: wide (≈76.2 mm) and narrow (≈31.8 mm) with specified dimensions, mass and geometry.
  • Slider properties: specified hardness (IRHD) and rebound resilience (ISO 7619, ISO 4662, ISO 48 referenced). Static contact force on the slider when calibrated: 22.2 ± 0.5 N.
• Specimen requirements:
  • Typical test area: 136 × 86 mm using the wide slider (C scale). If not possible, 42 × 86 mm with the narrow slider (F scale).
• Procedure controls:
  • Conditioning rules for new sliders and discard criteria (striking edge width > 3 mm, or excessive damage; slider life limit referenced).
  • Environmental limits: surface and slider temperature 5 °C to 40 °C.
  • Repeatability rule: five successive readings within ±3 units (C scale) or 0.03 (F scale).
• Calibration and quality:
  • Annual recalibration required (calibration procedure in Annex A).
  • Wet and dry testing procedures and reporting format specified.

Applications

EN 14231 is used by:

• Testing laboratories to generate certified SRV data for natural stone products.
• Manufacturers and suppliers for product characterization and quality control.
• Architects, specifiers and engineers to select appropriate stone finishes for safe flooring.
• Installers, facility managers and safety officers assessing in-service floors for slip risk, especially in wet or trafficked areas (entrances, ramps, wet rooms).
• Regulatory bodies and procurement teams referencing standardized slip resistance data in building safety specifications.

Keywords: EN 14231, pendulum tester, slip resistance, natural stone, SRV, pendulum friction tester, C scale, F scale, flooring safety, prEN 13373.

Related standards

• prEN 13373 - geometric characteristics / surface roughness criteria (roughness > 1 mm).
• ISO 4662, ISO 7619, ISO 48 - rubber resilience and hardness references used for slider specification.
• Other natural stone test standards (EN 1925, EN 1936, EN 13755, etc.) cover complementary properties such as water absorption, density and freeze resistance.

Standards Content (Sample)

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
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
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