NBN EN 31092:1994

The methods of measurement specified apply to e.g. fabrics, films, coatings, foams and leather, including multilayer assemblies, for use in clothing, quilts, sleeping bags, upholstery and similar textile or textile-like products. Application is restricted to a maximum thermal resistance and water-vapour resistance which depend on the dimensions and construction of the apparatus used (e.g. 2 m^2 K/W and 700 m^2 Pa/W, respectively), for the minimum specifications of the equipment referred to.