Trial Purpose:
To evaluate successful cleaners on fifth contaminant.
Date Run:
06/12/2001Experiment Procedure:
The four successful cleaners from the previous trial were again diluted to 5% using DI water in 600 ml beakers and placed in a Crest 40 kHz ultrasonic tank model 4Ht 1014-6. Solutions were heated to 130 F. Twelve preweighed coupons were coated with W.A. Wood #30 Lube Oil and reweighed. Three coupons were immersed into each solution and cleaned for five minutes. The coupons were rinsed in tap water at 120 F for 30 seconds and dried using a Master Appliance Corp, Hot-air gun model HG-301A at 500 F for 1 minute. Final "clean" weights were recorded and efficiencies were calculated.
Trial Results:
All four were successful in removing the #30 Lube Oil in under the 2 minutes of ultrasonic cleaning. Three of the four needed only 30 seconds to remove the oil from the coupons. Daraclean was the only one that took longer, require just over 1 minute. The lubricant floated to the top of each solution, making filtration or other forms of separation easy.
The following table lists the calculated efficiencies for coupon cleaned.
| Cleaner | Coupon 1 | Coupon 2 | Coupon 3 | Average | Std Dev |
| Inproclean | 98.41 | 99.62 | 99.18 | 99.07 | 0.61 |
| Daraclean | 98.52 | 97.58 | 98.67 | 98.26 | 0.59 |
| Green Stuff | 100.02 | 99.52 | 99.83 | 99.79 | 0.25 |
| Beyond | 98.47 | 99.51 | 99.60 | 99.19 | 0.63 |
Success Rating:
Results successful using TACT (time, agitation, concentration, and temperature, as well as rinsing and drying) and/or other cleaning chemistries examined.Conclusion:
The four cleaners were all successful in removing over 98% of the lubricant in under one minute.
