Trial Purpose:
To evaluate successful alternatives at a higher temperature.
Date Run:
12/02/2004Experiment Procedure:
Four products were selected based on test results from the previous trial. Each product was diluted with DI water to vendor suggested concentration. The products were then heated to 160 F on a hot plate.
Twelve of the pre-contaminated stainless steel coupons were cleaned, three coupons per product for 15 minutes 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:
Three of the four products were all more effective at the higher temperature for the same cleaning time (15 minutes). Only the Ecco Commercial cleaner had a lower efficiency than cleaning at 130 F. (A difference of 7%). Two of the products removed over 75% of the oil/starch mix. The 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 | 0.0875 | 45.18 |
| 0.0611 | 0.0386 | 36.82 | |
| 0.1829 | 0.0715 | 60.91 | |
| Ecco Commercial | 0.0793 | 0.0567 | 28.50 |
| 0.0834 | 0.0134 | 83.93 | |
| 0.0866 | 0.0334 | 61.43 | |
| Organic Cleaner/Degreaser | 0.0945 | 0.0130 | 86.24 |
| 0.1665 | 0.0138 | 91.71 | |
| 0.0547 | 0.0091 | 83.36 | |
| Super H2O2 | 0.0716 | 0.0226 | 68.44 |
| 0.1511 | 0.0257 | 82.99 | |
| 0.0794 | 0.0191 | 75.94 |
Success Rating:
A follow up test, usually based on company input.Conclusion:
All four products will be cleaned for an additional 15 minutes (30 minutes total). All other conditions will be kept the same.
