BS 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 the compatibility testing of hydraulic braking systems and components mounted on road vehicles.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 4925 Road vehicles — Specification of non-petroleum-base brake fluids for hydraulic systems ASTM D 1121, Standard Test Met hod 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
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC 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/
4 ISO reference fluid for compatibility testing
The composition of the reference fluid is specified in Table 1. The fluid shall comply with the specifications of ISO 4925.BS ISO 4926 pdf download.