Microbiological analysis of milk; determination of coliforms; method with liquid medium
Edition 1992-04

Microbiological analysis of milk - Determination of Escherichia coli - Part 1: Method with liquid medium
Edition 2024-09

Microbiological analysis of milk - Determination of Escherichia coli - Part 1: Method with liquid medium
Edition 2023-11

Microbiological analysis of milk; determination of Escherichia coli; method with liquid medium
Edition 1991-05

Photocatalytic activity of surfaces - Determination of photocatalytic activity of surfaces in an aqueous medium by degradation of methylene blue
Edition 2021-10

District heating pipes - Bonded single pipe systems for directly buried hot water networks - Factory made pipe assembly of steel service pipe, polyurethane thermal insulation and a casing of polyethylene; German version EN 253:2019
Edition 2020-03

District heating pipes - Bonded single pipe systems for directly buried hot water networks - Factory made pipe assembly of steel service pipe, polyurethane thermal insulation and a casing of polyethylene; German and English version EN 253:2019/prA1:2022
Edition 2022-07

District heating pipes - Bonded single pipe systems for directly buried hot water networks - Factory made fitting assemblies of steel service pipes, polyurethane thermal insulation and a casing of polyethylene; German and English version prEN 448:2023
Edition 2023-08

District heating pipes - Bonded single pipe systems for directly buried hot water networks - Factory made fitting assemblies of steel service pipes, polyurethane thermal insulation and a casing of polyethylene; German version EN 448:2019
Edition 2020-03

District heating pipes - Bonded single pipe systems for directly buried hot water networks - Factory made steel valve assembly for steel service pipes, polyurethane thermal insulation and a casing of polyethylene; German version EN 488:2019
Edition 2020-03