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Hydrogen Technologies Standards form the basic framework for market ramp-up
More information
Climate change Standards and specifications support climate targets
More information
Smart Farming Standards and specifications are drivers for the digitalization of agriculture
More information

Standards [CURRENT]

SN EN 15153-4
Railway applications - External visible and audible warning devices - Part 4: Audible warning devices for urban rail

Title (German)

Bahnanwendungen - Äussere optische und akustische Warneinrichtungen - Teil 4: Signalhörner für städtische Schienenbahnen

Edition 2020-07

Original language German

Price from 61.00 €

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Hydrogen Technologies Standards form the basic framework for market ramp-up

Climate change Standards and specifications support climate targets

Smart Farming Standards and specifications are drivers for the digitalization of agriculture

SN EN 15153-4 Railway applications - External visible and audible warning devices - Part 4: Audible warning devices for urban rail

Want to learn more?

SN EN 15153-4
Railway applications - External visible and audible warning devices - Part 4: Audible warning devices for urban rail