Brake Fluid Specification DOT
In our laboratory, the following parameters can be measured:
| Test Method | DOT3 | DOT4 | DOT4 Type 200 |
DOT5 |
| Chemical property | Glycol | Glycol | Glycol | Silicon |
| Boiling point
Equilibrium Reflux Boiling Point º C (ERBP) |
≥ 205 | ≥230 | ≥ 280 | ≥ 260 |
| Wet boiling point (water content: 3–4%)
Wet Equilibrium Reflux Boiling Point ºC |
≥ 140 | ≥155 | ≥ 200 | ≥ 180 |
| Viscosity -40ºC (mm²/s) | ≤1500 | ≤1800 | ≤900 | |
| Viscosity 100ºC (mm²/s) | ≥1.5 | ≥1.5 | ≥1.5 | |
| Density @ 20ºC | ||||
| pH Value | 7–11.5 | 7–11.5 | 7– 11.5 |
Sources, Links
- SAE Handbücher, J1703
- http://frwebgate.access.gpo.gov/cgi-bin/get-cfr.cgi?TITLE=49&PART=571&SECTION=116&TYPE=TEXT
- http://www.rpmnet.com/techart/fluid.shtml
- http://www.stealth316.com/2-brakeupgrade.htm
- http://www.kfzbetrieb.de/fachartikel/kb_fachartikel_nh_51377.html
- http://www.bobbyarchermotorsports.com/pdf_2848_3.pdf
SAE Handbook
The exact specification of the DOT standard is in the SAE Handbooks.
- SAE Handbook (Revision 04), complete version: CHF 1,480.00 (Volume 3 has been withdrawn. Only the complete handbook is deliverable.)
It can be bought from the Swiss Standards Association (Schweizerische Normenvereinigung).
- DOT means Department of Transportation.