The purpose of this experiment was to determine the effectiveness of four selected cleaners in removing Vanishing Oil from TURI steel coupons using unheated immersion.
Date Run:
08/20/2020
Experiment Procedure:
Pre-weighed steel coupons were contaminated with the vanishing oil provided by the client and placed on the bottom third of each coupon. Dirty weights were recorded before immersing the coupons, three per cleaner, for 15 minutes at room temperature. After 15 minutes, coupons were dried using the air gun and final weights were taken.
Trial Results:
Cleaner
Initial wt. of cont.
Final wt. of cont.
% Cont. Removed
%AVG
Liquinox
0.0154
0.0024
84.42
81.67
0.0094
0.0017
81.91
0.0061
0.0013
78.69
Surface Cleanse 930
0.0146
0.0014
90.41
89.95
0.0186
0.0015
91.93
0.0128
0.0016
87.5
Sta Sol ESS 160
0.0126
0.001
92.06
98.96
0.0109
-0.0007
106.42
0.0062
0.0001
98.39
Smart Solve 605
0.0107
0.0015
85.98
63.67
0.0105
0.0037
64.76
0.0072
0.0043
40.28
Success Rating:
Results successful using TACT (time, agitation, concentration, and temperature, as well as rinsing and drying) and/or other cleaning chemistries examined.
Conclusion:
Sta Sol ESS 160 was the most effective cleaner removing an average of 98.96% of soil from steel coupons. Surface Cleanse 930 was the second most effective removing an average of 89.95%, however, vendor alerted the lab to not use 5% going forward. Any further testing will need to be at 2% or less.
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