Under publication
ISO 4925
Road vehicles — Specification of non-petroleum-based brake fluids for hydraulic systems
Reference number
ISO 4925
ISO 4925
Edition 4
2026-06
2026-06
© ISO 2026
Under publication
ISO 4925
88473
Under publication
(Edition 4, 2026)
Final production steps (up to seven weeks).
Will replace ISO 4925:2020
Abstract
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).
General information
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Status: Under developmentPublication date: 2026-06Stage: International Standard under publication [60.00]
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Edition: 4
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Technical Committee :ISO/TC 22/SC 33
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Life cycle
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Previously
PublishedISO 4925:2020
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Now
