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Normas CEN

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EN

EN ISO 11986:2026

En Vigor
2026-01-21
Ophthalmic optics - Contact lenses and contact lens care products - Determination of preservative uptake and release (ISO 11986:2026)
EN

EN ISO 3744:2026

En Vigor
2026-03-11
Acoustics - Determination of sound power levels of noise sources using sound pressure - Engineering methods for an essentially free field over a reflecting plane (ISO 3744:2025, including corrected version 2026-01)
EN

EN 17931:2026

En Vigor
2026-03-04
Gas welding equipment - Manual gas equipment for welding, heating and cutting - Periodic inspection
EN

EN 14439:2025/AC:2026

En Vigor
2026-02-19
Cranes - Tower cranes