Brake Fluid Anti-Rust Performance Tester – Data Analysis and Maintenance

Brake Fluid Anti-Rust Performance Tester – Data Analysis and Maintenance

Data Interpretation
Calculate corrosion rate in mg/cm²·day by dividing mass loss by coupon surface area and exposure time. A rate below 0.03 mg/cm²·day generally indicates acceptable performance for mineral-based fluids; synthetic fluids may aim for lower values.

Trend Monitoring
Plot corrosion rates versus time or pH drift to detect onset of hydrolytic degradation. Combine anti-rust data with viscosity and boiling point measurements to assess overall fluid health.

Maintenance Checklist

• Bath Fluid Replacement: Change heat transfer medium annually to prevent thermal degradation.

• Coupon Fixture Inspection: Check for metal fatigue or warping; replace if bent.

• pH Probe Calibration: Calibrate pH sensors monthly using standard buffers.

Common Challenges

• Localized Pitting: May indicate chloride contamination—verify water quality and sealing of test vessels.

• pH Drift: Monitor fluid pH over time; supplement inhibitors if pH falls below 7.5.

Safety Precautions
Brake fluids can be toxic and flammable. Operate the tester in a ventilated area, and follow waste-disposal guidelines for used fluids and cleaning solvents.