EN 16301:2013

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.REDUYDQMHPrüfverfahren für Naturstein - Bestimmung der Empfindlichkeit gegen unbeabsichtigte FleckenbildungMéthodes d'essai pour les pierres naturelles - Détermination de la sensibilité au tachage accidentelNatural stone test methods - Determination of sensitivity to accidental staining91.100.15Mineralni materiali in izdelkiMineral materials and productsICS:Ta slovenski standard je istoveten z:EN 16301:2013SIST EN 16301:2013en,fr,de01-maj-2013SIST EN 16301:2013SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 16301
March 2013 ICS 73.020; 91.100.15 English Version
Natural stone test methods - Determination of sensitivity to accidental staining
Méthodes d'essai pour les pierres naturelles - Détermination de la sensibilité au tachage accidentel
Prüfverfahren für Naturstein - Bestimmung der Empfindlichkeit gegen unbeabsichtigte Fleckenbildung This European Standard was approved by CEN on 12 January 2013.
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-CENELEC 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-CENELEC Management Centre has the same status as the official versions.
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Specification of staining agents . 11 Annex B (informative)
Colour pictures to facilitate the evaluation of staining . 12 Bibliography . 17
1 Scope The European Standard specifies a method to assess the sensitivity of natural stones when exposed to accidental staining. It defines a procedure for the application of the stains, the cleaning and the assessment of the surface appearance after cleaning. It also covers the possibility to assess the efficiency of a surface treatment. Note that the method does not intend to present any de-staining technique. 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 undated references, the latest edition of the referenced document (including any amendments) applies. EN ISO 11664-2, Colorimetry – Part 2: CIE standard illuminants (ISO 11664-2) EN ISO 11998, Paints and varnishes – Determination of wet-scrub resistance and cleanability of coatings (ISO 11998) ISO 1065, Non-ionic surface-active agents obtained from ethylene oxide and mixed non-ionic surface-active agents – Determination of cloud point 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 surface finishing final surface texture applied to a stone during processing 3.2 matt finished surface surface treatment to produce a very flat, uniform, but no polished finish
Note 1 to entry: Matt finished surface can be obtained by means of a silicium carbide bonded polishing disk with grain size F 400 mesh. 3.3 surface treatment application of certain materials (i.e chemicals) to the exposed face of a slab [SOURCE: EN 12670:2001, 2.4.29] 3.4 impregnation protection of the surface of a stone by a pore-sealing product or a chemical coating 3.5 staining agent liquid used to produce stains on the surface of the stone SIST EN 16301:2013

5.2 Pipette, 0,10 ml – 1,00 ml
5.3
Wet Abrasion Scrub Tester, according to EN ISO 11998. The machine (Figure 1) works with a sinus-shaped movement with a frequency of 35 cycles per minute, and amplitude of approximately 350 mm. The total weight of the scrubbing arm with dry cloth and its holder shall be (350 ± 10) g.
5.4 Weights to achieve the specified load on the scrubbing arm.
Key a) scrubbing arm with dry cloth and its holder b) the machine
Figure 1 — Example of washability apparatus for cleaning test 5.5 Cleaning cloth a) Dimensions of the cloth 120 mm × 38 mm (may be different depending on the cleaning equipment). b) Thickness: (2 ± 0,5) mm.
c) Area weight: (300 ± 50) g/m2. d) A thinner cloth may be used in layers to achieve the above stated properties. e) At least 50 % viscose (regenerated cellulose fibres). SIST EN 16301:2013

Key 1 cloth Figure 2 — Cleaning cloth on wooden block 5.7 Camera, digital (a minimum of 2,5MPixels, uncompressed), for documentation of unstained and stained test specimens. 5.8 Daylight or illuminants D65 (6500K) according to EN ISO
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