ASTM D4739 test method - Base number by hydrochloric acid titration. Common lab test used for marine lube quality assessment.
Formula
$$ \text{Method} = \text{ASTM D4739} $$
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| $ASTM D4739$ | Base number by hydrochloric acid titration | - | ASTM / ISO / IMO |
Sources
- ASTM D4739.