Biotechnology - Guidance on assessment of the purity, biological activity and stability of microorganism based products; German version EN 12689:1998
Edition 1998-10

Soil improvers and growing media - Determination of the aerobic biological activity - Part 2: Self heating test for compost; German version EN 16087-2:2011
Edition 2012-01

Recreational diving services - Requirements for rebreather diver training - Decompression diving to 45 m (ISO 24805:2022); German version EN ISO 24805:2022/A11:2024
Edition 2024-09

Recreational diving services - Requirements for rebreather diver training - No-decompression diving (ISO 24804:2022); German version EN ISO 24804:2022/A11:2024
Edition 2024-09

Solid recovered fuels - Determination of the current rate of aerobic microbial activity using the real dynamic respiration index; German version EN 15590:2011
Edition 2011-11

Determination of lactoperoxidase activity in milk - Part 1: Photometric method (Reference method)
Edition 2002-08

Information technology - Learning, education and training - Metadata for learning resources - Part 5: Educational elements (ISO/IEC 19788-5:2012); German version EN ISO/IEC 19788-5:2014
Edition 2014-04

Application specific preparation of building material test specimens for determining their photocatalytic activity
Edition 2020-07

Analysis of honey - Determination of saccharase activity - Siegenthaler method
Edition 2016-12

Soil quality - Determination of dehydrogenases activity in soils - Part 1: Method using triphenyltetrazolium chloride (TTC) (ISO 23753-1:2019 + Amd.1:2020); German version EN ISO 23753-1:2019 + A1:2020
Edition 2021-03