DIN EN 235:2019 pdf free.Wallcoverings -Vocabulary and symbols;German and English version prEN 235:2019.
3.1.7.2 agglomerated composition cork product obtained from the agglutination of granulated cork with the addition of a binder not derived from cork cells
3.1.7.3 expanded cork cork board product made from granulated cork expanded and bonded exclusively with its own natural binder exuded from cork cells by heating under pressure
3.1.8 support surface to which the wallcovering is applied, e.g. wall or ceiling Note 1 to entry: This is indicated by a thick solid line in the appropriate symbols in Table 1.
3.1.9 method of application method by which the wallcovering is to be attached to the support during hanging, i.e. the surface[s) to which a suitable adhesive has to be applied, or has already been applied and requires activation i.e. activation by water or pressure. Note 1 to entry:  The appropriate symbols to indicate means of application are serial numbers 5.1 to 5.3 ofTable 1. Where the means of application require to be combined, the necessary symbols from Table 1 should be used together, separated by a + sign of equivalent size to the symbols.
3.1.10 overlap and double cut method by which the edges of adjoining lengths of wallcovering can be made to butt together Note to entry 1: The adjoining edges of adjacent lengths of wallcovering are overlapped on the support during application and both thicknesses are cut through in a continuous movement with a sharp knife. The joint is opened and surplus wallcovering material removed before the adjoining edges are realigned. Note 2 to entry: The appropriate symbol to indicate advice to overlap and double cut is serial number 7.1 of Table 1.
3.1.11 impact resistance ability of a heavy-duty wallcovering to maintain its surface intact under the effect of impact Note 1 to entry: A wallcovering can be claimed to be impact resistant if it satisfies the impact resistance requirements of EN 259-2, the appropriate symbol to accompany such a claim being serial number 7.3 of Table 1.DIN EN 235 pdf download.