Road vehicles — Hydraulic braking systems — Pipes, tapped holes and male fittings

This technical document specifies the requirements for hydraulic brake systems used in road vehicles, focusing on the components that connect various parts of the fluid circuit. It defines precise dimensions and geometric tolerances for conduits, threaded holes, external threads, and hose end fittings to ensure interchangeability and safety across different vehicle manufacturers. The standard outlines testing procedures to verify the integrity of these connections under operational pressure and environmental conditions. Adherence to these specifications helps prevent fluid leaks and maintains consistent braking performance throughout the service life of the vehicle. The guidelines cover materials, surface finishes, and marking requirements to facilitate identification during installation and maintenance. By establishing uniform criteria, the document supports the manufacturing of reliable hydraulic networks essential for vehicle safety. These technical provisions apply to all relevant hydraulic brake components within the specified scope of road transport applications.