DIN EN 13256-2015 土工织物及其相关产品.用于隧道和地下结构施工的土工织物及其相关产品要求的特性;德文版本EN 13256-2014+A1-2015
Geotextiles and geotextile-related products - Characteristics required for use in the construction of tunnels and underground structures; German version EN 13256:2014+A1:2015