Clean the Penetrometer
Clean, dry penetrometers are essential for accurate, reproducible results.
It is recommended that rubber gloves be worn when handling penetrometers. |
Never use an ultrasonic bath to clean penetrometers. Ultrasonic cleaning systems will damage the metal plating and remove the serial number information. |
- Dissolve Alconox® (or other suitable detergent) in water. Ensure the detergent is completely dissolved before placing the penetrometer into the solution.
- Place the mercury waste container in a shallow pan of water in case of spills.
- Hold the penetrometer upright over a mercury waste container to allow any accumulated mercury to drain out.
- Remove the cap from the penetrometer If the cap is difficult to remove, see Penetrometer Nut.
- Turn the penetrometer over and pour remaining sample into the waste container.
- Immerse the penetrometer in the detergent solution. Clean the outside of the penetrometer stem and the bulb with a brush. Then clean the inside of the stem with one of the smaller brushes.
- Rinse the penetrometer with warm water. Hold the penetrometer upright and enure that water runs from the bulb through the stem freely.
- Rinse the penetrometer with IPA.
- Immerse the stainless steel cap and nylon closure components in the detergent solution. Clean with appropriate brushes and rinse in warm water.
- If there is any mercury in the bottom of the detergent solution, dispose of the solution properly.
- Use dry nitrogen to dry the penetrometer, cap, and closure components.
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