Two products were selected from the previous trial based on performance. The two products were used at 20%. Products were used at room temperature. Each solution was used in a 40 kHz Branson 1510 ultrasonic unit after being degassed for 5 minutes.
The inner jacket was filled with the cleaning solution and the tube was partially immersed into the ultrasonic tank and cleaned for 20 minutes. Following cleaning, parts were rinsed with a tap water spray for 1 minute at room temperature. The cleaned part was dried with compressed air at room temperature for 30 seconds. Observations were made to determine how well each solution worked.