This European Standard specifies a test method to assess the relative resistance of natural stones with an open porosity of greater than 5%, measured in accordance with prEN 1936, to damage caused by the crystallisation of salts. The test is not necessary for low porosity stones.
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
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