Plastics piping systems for the supply of gaseous fuels - Polyethylene (PE) - Part 1: General; German version EN 1555-1:2021
Edition 2021-12

Trenchless construction and testing of drains and sewers; German version EN 12889:2022
Edition 2023-03

Geotechnical investigation and testing - Sampling methods and groundwater measurements - Part 1: Technical principles for the sampling of soil, rock and groundwater (ISO 22475-1:2021); German version EN ISO 22475-1:2021
Edition 2022-02

Execution of special geotechnical work - Micropiles; German version EN 14199:2015
Edition 2015-07

Plastics piping systems for water supply, and for drainage and sewerage under pressure - Polyethylene (PE) - Part 1: General; German and English version prEN 12201-1:2021
Edition 2021-05

Execution of special geotechnical work - Bored piles; German version EN 1536:2010+A1:2015
Edition 2015-10

German construction contract procedures (VOB) - Part A: General provisions relating to the award of construction contracts
Edition 2019-09

Geotechnical investigation and testing - Geohydraulic testing - Part 1: General rules (ISO 22282-1:2012); German version EN ISO 22282-1:2012
Edition 2012-09

Execution of special geotechnical work - Grouting; German version EN 12715:2020
Edition 2021-01

Execution of special geotechnical works - Displacement piles; German version EN 12699:2015
Edition 2015-07