Railway applications. Aerodynamics - Symbols and units1 Scope This European Standard applies to aerodynamics for railway applications. It defines symbols and units used in formulae and calculations in the field of aerodynamics. The definitions given in this European Standard explain the symbols and classify the units. Further to usual symbols, this document contains symbols which are used for calculations. It should be noted, however, that these symbols may not have the same significance in a different

modification

BS EN 1888-1 on pushchairs and prams is useful for:

scriber points and centre points

Hemispherical transmittance factor with specular included

BS EN 2591-6406 specifies a method of evaluating the operational mechanical endurance of optical connection elements with optical contacts

and test methods for the quality assurance of valves for cryogenic service

Manufacturers of electrical components for aerospace need to ensure that safety and security protocols are adhered to while making products for an aircraft electrical system

Material characterization and testing

It’s a technical revision which cancels and replaces the 2012 standard

Ecodesign activities in product design and development

no matter which launch vehicle agencies are selected

BS EN 12150-1