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Normas CEN

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EN

EN ISO 11642:2025

En Vigor
2025-12-17
Leather - Tests for colour fastness - Colour fastness to water (ISO 11642:2025)
EN

EN ISO 17507-1:2025

En Vigor
2025-12-17
Natural gas - Calculation of methane number of gaseous fuels for reciprocating internal combustion engines - Part 1: MNc method (ISO 17507-1:2025)
EN

EN 81-42:2025

En Vigor
2025-12-17
Safety rules for the construction and installation of lifts - Special lifts for the transport of persons and goods - Part 42: Vertical lifting appliances with enclosed carrier intended for use by persons, including persons with disability
EN

EN ISO 23697-1:2025

En Vigor
2025-12-17
Water quality - Determination of total bound nitrogen (ST-TNb) in water using small-scale sealed tubes - Part 1: Dimethylphenol colour reaction (ISO 23697-1:2023)