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Normas CEN

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EN

EN 488-1:2025

En Vigor
2025-03-19
District heating pipes - Bonded single pipe systems for directly buried hot water networks - Part 1: Factory made steel shut-off valve assembly for steel service pipes, polyurethane thermal insulation and a casing of polyethylene
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EN

EN 15698-2:2025

En Vigor
2025-03-19
District heating pipes - Bonded twin pipe systems for directly buried hot water networks - Part 2: Factory made fitting and valve assemblies of steel service pipes, polyurethane thermal insulation and one casing of polyethylene
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EN

EN 17131-2:2025

En Vigor
2025-04-02
Textiles and textile products - Determination of certain residual solvents - Part 2: Determination of benzene, method using headspace gas chromatography
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EN

EN 3662-001:2024

En Vigor
2024-12-18
Aerospace series - Circuit breakers, three-pole, temperature compensated, rated currents 20 A to 50 A - Part 001: Technical specification
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