NEN - NVN-ENV 12224
Geotextiles and geotextile-related products - Identification of the resistance to weathering
|Publication Date:||1 March 1997|
|ICS Code (Geotextiles):||59.080.70|
Specifies methods for the exposure of geotextiles and geotextile-related products to weathering conditions more intense than those of natural weathering. The following types of light sources are included: - xenon-arc lamps in accordance with ISO 4892-2 - fluorescent UV lamps in accordance with ISO 4892-3. This is an index test whose purpose is to differentiate products with little or no resistance to weathering exposure from those which do have this resistance.