ISO International Standard

Road vehicles — Elastomeric seals for hydraulic disc brake cylinders using a petroleum base hydraulic brake fluid (service temperature 120 degrees C max.)

Specifies the performance test methods and requirements for seals used in disc brake cylinders. Applies to solid section type seals (square, rectangular,’O’-ring) mounted stationary in the cylinder bore or on the movable piston of disc brakes. Describes the apparatus, preparation of specimens, and test procedures; lists test requirements.

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