This European Standard specifies requirements to be met for the design, dimensions, performance and testing of the brake disc. This European Standard applies to brake discs mounted onto the wheel, including the wheel web or wheel hub of railway rolling stock. For each discrete unit so fitted, one or more disc brake rings, each having one friction face, may be deployed. This European Standard applies to discs designed to be fitted to rail vehicles used on the main national networks, urban networks, underground railways, trams, private networks (regional railways, company railways, etc.). In addition to the common requirements, this European Standard also requires the items detailed in Clause 5 to be documented. For compliance with this European Standard, both the common requirements and the documented items need to be met.
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