Geosynthetics for protective and/or drainage purposes for use in sealing road tunnels pursuant to the additional technical contract conditions and technical test specifications for civil engineering works [Zusätzlichen Technischen Vertragsbedingungen für Ingenieurbauten — ZTV-ING], Part 5: Tunnel construction, Section 5: Sealing.

Technical delivery conditions and technical test specifications for civil engineering works [Technische Lieferbedingungen und Technische Prüfvorschriften für Ingenieurbauten — TL/TP-ING]; Part 5, Section 5: Technical delivery conditions and technical test specifications for protective and drainage layers made of geosynthetics [Technische Lieferbedingungen und Technische Prüfvorschriften für Schutz- und Dränschichten aus Geokunststoffen — TL/TP SD]

TL/TP SD contains the requirements governing the delivery of geosynthetics and specify the nature and scope of the tests required for their use in tunnel sealing pursuant to ZTV-ING, Part 5: Tunnel construction, Section 5: Sealing.