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.
EN 16301:2013 Referenced Document
EN ISO 11998:2006 Paints and Varnishes - Determination of Wet-Scrub Resistance and Cleanability of Coatings
ISO 1065:1991 Non-ionic surface-active agents obtained from ethylene oxide and mixed non-ionic surface-active agents; determination of cloud point
EN 16301:2013 history
2021EN 16301:2021 Natural stone test methods - Determination of sensitivity to accidental staining
2013EN 16301:2013 Natural stone test methods - Determination of sensitivity to accidental staining