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LOW WATER TOLERANT BRAKE FLUIDS
- Ground Vehicle Standard
- J1705_198810
- Revised
Sector:
Issuing Committee:
Language:
English
Scope
This recommended practice was prepared by the Motor Vehicle Brake Fluids Subcommittee of the SAE Hydraulic Brake Systems Actuating Committee to provide engineers, designers, and manufacturers of motor vehicles with a set of minimum performance standards in order to assess the suitability of silicone and other low water tolerant type brake fluids (LWTF) for use in motor vehicle brake systems. These fluids are designed for use in braking systems fitted with rubber cups and seals made from natural rubber (NR), styrene-butadiene rubber (SBR), or a terpolymer of ethylene, propylene, and a diene (EPDM).
In the development of the recommended requirements and test procedures contained herein, it is concluded that the LWTF's must be functionally compatible with existing motor vehicle brake fluids conforming to SAE Standard J1703 and with braking systems designed for such fluids. To utilize LWTF's to the fullest advantage, they should not be mixed with other brake fluids. Inadvertent mixtures of LWTF's with fluids meeting SAE J1703 are not known to have any adverse effects on performance, but all combinations have not been tested. Vehicle manufacturer's recommendations should be followed where indicated. These fluids are not necessarily suitable for use in central hydraulic or pumped systems and are not intended for use below temperatures of -50°C (-58°F). Brake fluids covered under this recommended practice are not required to tolerate water and extreme caution should be exercised to prevent accidental entry of water which might lead to brake failure. Other performance characteristics of these LWTF's not covered in this recommended practice are discussed in the Appendix.
Topic
Data Sets - Support Documents
No Datasets Available
Issuing Committee
Brake Fluids Standards Committee
The scope of the Brake Fluids Standards Committee is to develop and maintain relevant standards; recommended practices and information reports related to non-petroleum based brake fluids covering: The requirements of fluids for use in the hydraulic brake systems of motor vehicles; the handling, dispensing, and packaging of such fluids; service maintenance using such fluids. These documents are reviewed on a regular basis to ensure that they reflect the changing needs and requirements of the industry.
Reference
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