ISO 4926:2020 pdf download Road vehicles — Hydraulic braking systems — Non-petroleum-based reference fluid
1 Scope
This document specifies the composition and characteristics of a reference fluid used for thecompatibility testing of hydraulic braking systems and components mounted on road vehicles.
2Normative references
The following documents are referred to in the text in such a way that some or all of their contentconstitutes requirements of this document. For dated references,only the edition cited applies. Forundated references,the latest edition of the referenced document(including any amendments) applies.ISO4925,Road vehicles —Specification of non-petroleum-base brake fluids for hydraulic systems
ASTM D 1121,Standard Test Method for Reserve Alkalinity of Engine Coolants and Antirusts
ASTM D 6304, Standard Test Method for Determination of Water in Petroleum Products, Lubricating Oils,and Additives by Coulometric Karl Fischer Titration
3Terms and definitions
No terms and definitions are listed in this document.
ISO and lEC maintain terminological databases for use in standardization at the following addresses:-ISo online browsing platform: available at https://www.iso.org/obp
—IEC Electropedia: available at http://www.electropedia.org/
4Iso reference fluid for compatibility testing
The composition of the reference fluid is specified in Table 1. The fluid shall comply with thespecifications of ISO 4925.
ISO 4926:2020 pdf download