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ISO/FDIS 4925

Road vehicles — Specification of non-petroleum-based brake fluids for hydraulic systems

General information

50.20     Mar 9, 2026

ISO

ISO/TC 22/SC 33

International Standard

43.040.40     75.120  

Scope

This document provides the specifications, requirements and test methods, for non-petroleum-based fluids used in road-vehicle hydraulic brake and clutch systems that are designed for use with such fluids and equipped with seals, cups or double-lipped type gland seals made of styrene-butadiene rubber (SBR) and ethylene-propylene elastomer (EPDM).

Life cycle

PREVIOUSLY

PUBLISHED
ISO 4925:2020

NOW

PROJECT
ISO/FDIS 4925
50.20 Proof sent to secretariat or FDIS ballot initiated: 8 weeks
Mar 9, 2026

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