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ISO 4926:2020

Road vehicles — Hydraulic braking systems — Non-petroleum-based reference fluid

Publication date:   Jul 8, 2020

General information

90.93   Standard confirmed   Dec 23, 2025

ISO

ISO/TC 22/SC 33 Vehicle dynamics and chassis components

International Standard

43.040.40   Braking systems | 75.120   Hydraulic fluids

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Scope

This document specifies the composition and characteristics of a reference fluid used for the compatibility testing of hydraulic braking systems and components mounted on road vehicles.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 4926:2006

NOW

PUBLISHED
ISO 4926:2020
90.93 Standard confirmed
Dec 23, 2025