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BS ISO 4925:2005

BS ISO 4925:2005

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by

Road vehicles. Specification of non-petroleum-base brake fluids for hydraulic systems

Available format(s)

Hardcopy , PDF

Superseded date

24-07-2020

Superseded by

BS ISO 4925:2020

Language(s)

English

Published date

15-03-2005

Publisher

British Standards Institution

€271.12
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Hardcopy - English
PDF - English
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Foreword
Introduction
1 Scope
2 Normative references
3 Materials
4 Specifications
5 Test methods
  5.1 Viscosity
       5.1.1 General
       5.1.2 Repeatability (single analyst)
       5.1.3 Reproducibility (multi-laboratory)
  5.2 Equilibrium reflux boiling point (ERBP)
       5.2.1 General
       5.2.2 Preparation of apparatus
       5.2.3 Test procedure
       5.2.4 Repeatability (single analyst)
       5.2.5 Reproducibility (multi-laboratory)
       5.2.6 Wet ERBP test
  5.3 pH
  5.4 Fluid stability
       5.4.1 High-temperature stability
       5.4.2 Chemical stability
  5.5 Corrosion
       5.5.1 Metal strip characteristics prior to testing
       5.5.2 Preparation of joints
       5.5.3 Test procedure
  5.6 Fluidity and appearance at low temperatures
       5.6.1 At -40 degrees C for 144 h
       5.6.2 At -50 degrees C for 6 h
  5.7 Water tolerance
       5.7.1 At -40 degrees C for 22 h
       5.7.2 At 60 degrees C for 22 h
  5.8 Compatibility/miscibility with ISO 4926 fluid
       5.8.1 At -40 degrees C for 22 h
       5.8.2 At 60 degrees C for 22 h
  5.9 Resistance to oxidation
  5.10 Effect on rubber
       5.10.1 General
       5.10.2 Test procedures
       5.10.3 Repeatability (single analyst)
       5.10.4 Reproducibility (multi-laboratory)
Annex A (normative) ISO Styrene-butadiene rubber (SBR)
                    brake cups for testing brake fluid
Annex B (normative) Corrosion test strips
Annex C (normative) Corrosion strip assembly
Annex D (normative) Standard ethylene, propylene and diene
                    (EPDM) terpolymer rubber slabstock
Annex E (normative) Triethylene glycol monomethyl ether
                    (TEGME) brake fluid grade
Bibliography

Provides the specifications - requirements and test methods - for non-petroleum-base fluids used in road-vehicle hydraulic brake and clutch systems that are designed for use with 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).

Committee
AUE/15
DevelopmentNote
Supersedes BS AU174-2(1985) (03/2005)
DocumentType
Standard
Pages
34
PublisherName
British Standards Institution
Status
Superseded
SupersededBy
Supersedes

Standards Relationship
ISO 4925:2005 Identical

ISO 812:2017 Rubber, vulcanized or thermoplastic — Determination of low-temperature brittleness
ASTM D 1613 : 2017 : REDLINE Standard Test Method for Acidity in Volatile Solvents and Chemical Intermediates Used in Paint, Varnish, Lacquer, and Related Products
ISO 4926:2006 Road vehicles Hydraulic braking systems Non-petroleum-base reference fluids
ASTM D 1120 : 2017 : REDLINE Standard Test Method for Boiling Point of Engine Coolants
ASTM E 260 : 1996 Standard Practice for Packed Column Gas Chromatography
ASTM D 3182 : 2016 : REDLINE Standard Practice for Rubber—Materials, Equipment, and Procedures for Mixing Standard Compounds and Preparing Standard Vulcanized Sheets
ASTM D 91 : 2002 : R2007 Standard Test Method for Precipitation Number of Lubricating Oils
ASTM D 865 : 2011 Standard Test Method for Rubber<char: emdash>Deterioration by Heating in Air (Test Tube Enclosure)
SAE J 1703 : 2016 MOTOR VEHICLE BRAKE FLUID
ISO 37:2017 Rubber, vulcanized or thermoplastic — Determination of tensile stress-strain properties
ISO 48:2010 Rubber, vulcanized or thermoplastic Determination of hardness (hardness between 10 IRHD and 100 IRHD)
ASTM D 746 : 2014 : REDLINE Standard Test Method for Brittleness Temperature of Plastics and Elastomers by Impact
ISO 1817:2015 Rubber, vulcanized or thermoplastic Determination of the effect of liquids

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