ISO/TS 11665-13:2017

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ISO/TS 11665-13:2017 is a technical specification (TS) that outlines a method for determining the radon diffusion coefficient in waterproofing materials. Specifically, it details a "membrane two-side activity concentration test method" to assess the permeability of radon through materials like bitumen, polymeric membranes, coatings, and paints. This standard helps determine how well these materials can block radon diffusion, which is important in building safety.