Trial Purpose:
To evaluate Crystal Simple Green at 10% solution for new pre-soiled samples.
Date Run:
04/13/2022Experiment Procedure:
The pre-soiled parts were weighed for dirty weights. The Crystal Simple Green was heated to 140 F and placed in the ultrasonics tank. The parts were then placed in the ultrasonics tank for 10 minutes and 5 minutes, one two parts for each timeframe. The coupons were taken out and left to dry; once the coupons were dry the clean weights were taken. After clean weights, the coupons were wiped down and weighed for initial weights. Visual observations were also noted.
Trial Results:
Crystal Simple Green at a 10% concentration is effective on these substrates for 5- and 10-minute timeframes. At 10 minutes the coupons were clean with minor spotting left on the surface. At 5 minutes the coupons also had minor spotting. Steel was a slight outlier for the 10-minute duration while it did well at 5 minutes. This difference may be due to oil that had not dripped off or removed properly for the 10-minute steel part.
5 Minute Cleaning
| Substrate | Duration | Initial wt. of cont. | Final wt. of cont. | %Cont Removed |
| Aluminum | 5 min | 0.0216 | 0.0014 | 93.52 |
| Steel | 0.0362 | 0.0014 | 96.13 | |
| Stainless Steel | 0.0138 | 0.0008 | 94.20 |
10 Minute Cleaning
| Substrate | Duration | Initial wt. of cont. | Final wt. of cont. | %Cont Removed |
| Aluminum | 10 min | 0.0512 | 0.0002 | 99.61 |
| Steel | 0.0337 | 0.0065 | 80.71 | |
| Stainless Steel | 0.1422 | 0.0081 | 94.30 |
Success Rating:
Results successful using TACT (time, agitation, concentration, and temperature, as well as rinsing and drying) and/or other cleaning chemistries examined.Conclusion:
Results were effective but not as effective as previous trials. Next trial will increase concentration and focus on lowering the cleaning duration.
