Gas infrastructure - Consequences of hydrogen in the gas infrastructure and identification of related standardisation need in the scope of CEN/TC 234; English version CEN/TR 17797:2022
Edition 2022-09

Biological measuring techniques for the determination and evaluation of effects of air pollution on plants (biomonitoring) - Use of passive biomonitoring methods with needles and leaves of free-standing trees
Edition 2019-01

Monitoring the effects of genetically modified organisms (GMO) - Assessment of the diversity of ferns and flowering plants - Vegetation surveys
Edition 2008-01

Monitoring the effects of genetically modified organisms (GMO) - Standardised monitoring of butterflies and moths (Lepidoptera) - Transect method, light trap, and larval survey
Edition 2010-01

Recording of nitrogen availability by Ellenberg indicator values of forest ground vegetation
Edition 2020-01

Stockyards for bulk material - Processes and continuous conveying equipment
Edition 2011-05

Environmental meteorology - Climate and air pollution maps for cities and regions
Edition 2015-09

Environmental meteorology - Urban development in view of climate change
Edition 2020-09

Emission control - Production of biochar
Edition 2019-06

Environmental meteorology - Meteorological measurements - Visual weather observations
Edition 2021-10