DIN EN ISO 12958-2:2019 土工织物和土工织物相关产品-平面水流量的测定-第2部分:性能测试(ISO/DIS 12958-2:2019)
Geotextiles and geotextile-related products - Determination of water flow capacity in their plane - Part 2: Performance test (ISO/DIS 12958-2:2019); German and English version prEN ISO 12958-2:2019