SIST EN 15802:2010

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.RPRþHQMDErhaltung des kulturellen Erbes - Prüfverfahren - Messung des statischen KontaktwinkelsConservation des biens culturels - Méthodes d'essai - Détermination de l'angle de contact statiqueConservation of cultural property - Test methods - Determination of static contact angle97.195Umetniški in obrtniški izdelkiItems of art and handicraftsICS:Ta slovenski standard je istoveten z:EN 15802:2009SIST EN 15802:2010en,fr,de01-februar-2010SIST EN 15802:2010SLOVENSKI
STANDARD



SIST EN 15802:2010



EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 15802
December 2009 ICS 97.195 English Version
Conservation of cultural property - Test methods - Determination of static contact angle
Conservation des biens culturels - Méthodes d'essai - Détermination de l'angle de contact statique
Erhaltung des kulturellen Erbes - Prüfverfahren - Messung des statischen Kontaktwinkels This European Standard was approved by CEN on 7 November 2009.
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 national standards may be obtained on application to the CEN 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 and notified to the CEN Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2009 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 15802:2009: ESIST EN 15802:2010



EN 15802:2009 (E) 2 Contents Page Foreword .3Introduction .41 Scope .52 Normative references .53 Terms and definitions .54 Principle .56 Test equipment .67 Preparation of test specimens .77.1 Number and dimensions of test specimens .77.2 Pre-conditioning of test specimens .78 Test procedure .79 Expression of results .89.1 Calculation of the static contact angle .810 Test report .8Annex A (informative)
Physical meaning of the static contact angle . 10Bibliography . 11 SIST EN 15802:2010



EN 15802:2009 (E) 3 Foreword This document (EN 15802:2009) has been prepared by Technical Committee CEN/TC 346 “Conservation of cultural property”, the secretariat 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 or by endorsement, at the latest by June 2010 and conflicting national standards shall be withdrawn at the latest by June 2010. 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 Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
SIST EN 15802:2010



EN 15802:2009 (E) 4 Introduction This test method can be applied if it does not change the value of the cultural property and follows relevant ethical codes of conservation practice. SIST EN 15802:2010



EN 15802:2009 (E) 5 1 Scope This European Standard specifies a method for the measurement of the static contact angle of a water drop on porous inorganic materials used for and constituting cultural property. The method may be applied to porous inorganic materials either untreated or subjected to any treatment or ageing. 2 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. prEN 15898:2009, Conservation of cultural property — Main general terms and definitions concerning conservation of cultural property 3 Terms and definitions For the purposes of this document, the terms and definitions given in prEN 15898:2009 and the following apply. 3.1 porous inorganic materials materials including natural stones, e.g. sandstone, limestone, marble, as well as artificial materials, such as mortar, plaster, brick and others 3.2 static contact angle angle , in degrees, formed by the surface of the specimen and the tangent to the water drop at the contact point, as shown in Figure 1
Key d diameter of the contact surface, in mm h height, in mm
static contact angle, in degrees Figure 1 — Static contact angle at time t 4 Principle Determination of the static contact angle between a water drop and the test surface of the specimen. SIST EN 15802:2010



EN 15802:2009 (E) 6 5 Symbols and abbreviations For the purposes of this document, the following symbols and abbreviations apply: d diameter of the contact surface, in mm h height, in mm
static contact angle, in degrees 6 Test equipment 6.1 Test equipment for the measurement of static contact angle consists of: i) an illumination source (1) that will not affect the temperature of the drop/specimen system, ii) a flat sample holder (2), iii) a drop deposition system, usually consisting of a graduated micro-pipette (3), with a flat head needle, positioned above and perpendicular to the specimen surface and able to deliver reproducible drops, iv) an optical system (4) that projects the image of the deposited water drop onto a screen (5) on which the height of the water drop and the diameter of the contact surface can be marked with a ruler (6). This part of the instrument can consist of a camera (4) able to record the image on a screen (5) where the parameters can be measured manually or automatically. The measurement principle of most commercial instruments available on the market is shown in Figure 2.
Key 1 illumination source 2 sample holder 3 graduated micro-pipette 4 optical system 5 screen 6 ruler Figure 2 — Schematic sketch of the measurement system SIST EN 15802:2010



EN 15802:2009 (E) 7 6.2 Sand paper with grain size of 82 µm (corresponding to grit number P180 according to the FEPA1) classificat
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