To evaluate products at an elevated temperature and longer cleaning time.
Date Run:
12/02/2004
Experiment 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.
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