- Report #: NT BUILD 389
- Approved: March 1992
The scope of this Nordtest method is to test and evaluate the waterproofing of wall coverings or wall treatments intended for use on board materials.
FIELD OF APPLICATION
The method is applicable to all watertight layers intended to protect non-resistant materials against water penetration and accumulation when exposed to the influence of water, as can be expected in bathrooms in ordinary dwellings.
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