Test Tube used to find the ethanol/alcohol percentage in gasoline.
Directions
- Step 1: Add water to the water line.
- Step 2: Add gasoline to the gasoline line.
- Step 3: Replace cap and shake vigorously.
- Step 4: Stand vial vertically with cap upright for 10 minutes.
- Step 5: Locate the gasoline/water separation line and read scale.
- The separation line will indicate the percentage of alcohol, if present.





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