ASTM D1287 Standard Test Method for pH of Engine Coolants and Antirusts
11. Report
11.1 Report the pH.

12. Precision and Bias
12.1 Repeatability - Duplicate results by the same operator should not be considered suspect unless they differ by more than +/- 0.1 pH units.

12.2 Reproducibility - The results submitted by two or more laboratories should not be considered suspect unless the results differ by more than +/- 0.2 pH units.

13. Keywords
13.1 antirusts; engine coolants; pH of engine coolants