Characterization of sludge - Evaluation of sludge density; German version EN 17183:2018
Edition 2019-12

Water quality - Determination of sulfates - Method by continuous flow analysis (CFA) (ISO 22743:2006 + Cor. 1:2007)
Edition 2015-08

Engineering survey - Part 3: Setting out
Edition 2010-09

German standard methods for the examination of water, waste water and sludge - Bio-assays (group L) - Part 37: Determination of the inhibitory effect of water on the growth of bacteria (Photobacterium phosphoreum cell multiplication inhibition test) (L 37)
Edition 1999-04

Water quality; determination of electrical conductivity (ISO 7888:1985); German version EN 27888:1993
Edition 1993-11

Ventilation and air conditioning - Part 4: Ventilation in buildings and rooms of health care
Edition 2018-09

Ergonomics of the physical environment - Assessment of environments by means of an environmental survey involving physical measurements of the environment and subjective responses of people (ISO 28802:2012); German version EN ISO 28802:2012
Edition 2012-06

Design of strengthened soil - Set up by means of jet grouting, deep mixing or grouting
Edition 2015-11

Railway applications - Designation systematic for railway vehicles - Part 1: General; German version EN 15380-1:2006
Edition 2006-06

Soil quality - Determination of redox potential - Field method (ISO 11271:2022)
Edition 2023-11