Trial Purpose:
To evaluate products at an elevated temperature and longer cleaning time.
Date Run:
12/02/2004Experiment Procedure:
The four products from the previous trial were diluted with DI water to vendor suggested concentration. The products were then heated to 160 F on a hot plate.
The pre-contaminated stainless steel coupons were cleaned three coupons per product for another 15 minutes (30 minutes total) using stir bar agitation. Cleaning was followed by a 15 second rinse in a tap water bath at 120 F and air blow off for 30 seconds at room temperature. Once dry, coupons were weighed a third time and efficiencies were calculated for each product tested.
Trial Results:
All four products removed over 75% of the oil/starch mix after 30 minutes of cleaning at 160. Two of the products removed over 90%.he table below lists the amount of soil added, the amount remaining and the percent removed for each coupon cleaned.
| Cleaner | Initial wt | Final wt | % Removed |
| VPW SC 1000 | 0.1596 | 0.0380 | 76.19 |
| 0.0611 | 0.0226 | 63.01 | |
| 0.1829 | 0.0216 | 88.19 | |
| Ecco Commercial | 0.0793 | 0.0098 | 87.64 |
| 0.0834 | 0.0054 | 93.53 | |
| 0.0866 | 0.0041 | 95.27 | |
| Organic Cleaner/Degreaser | 0.0945 | 0.0036 | 96.19 |
| 0.1665 | 0.0049 | 97.06 | |
| 0.0547 | 0.0035 | 93.60 | |
| Super H2O2 | 0.0716 | 0.0098 | 86.31 |
| 0.1511 | 0.0102 | 93.25 | |
| 0.0794 | 0.0115 | 85.52 |
Success Rating:
A follow up test, usually based on company input.Conclusion:
The increased time and temperature resulted in three products removing over 88% of the soil. The next phase of testing will be to compare these product directly to the current cleaner.
