Browse Client Types

Browse past lab clients by general industry sectors

Trial Number 1

Trial Purpose:

To determine the efficacy of aqueous cleaners compared to water utilizing VCN equipment.

Date Run:

04/11/2023

Experiment Procedure:

Eighteen pre weighed stainless steel coupons were used, three per soil per cleaner.  Half of the coupons were soiled by swabbing the bottom third of the coupons with J1 grease, while the other half of the coupons were soiled with J2 grease.  The dirty weights of all coupons were then recorded and visual rankings according to the key shown below were recorded.  The coupons were then subjected to a one-minute heated cycle at 140 degrees F in the VCN using water, Alcojet 1% concentration, and LF2100 1% concentration.  The coupons were then removed and left to air dry overnight.  The next day the clean weights of the coupons were recorded and visual rankings weer recorded.  

Visual Rankings Key

1= 100% of soil removed

2= 75% of soil removed

3= 50% of soil removed

4= 25% of soil removed

5= 0% of soil removed

Trial Results:

Cleaner soil Initial wt of cont. Final wt of cont. %Cont Removed % AVG % Overall
Water J1 0.4213 0.0336 92.02 79.01 80.59
0.3543 0.0553 84.39
0.3507 0.1381 60.62
J2 0.7689 0.1172 84.76 82.16
1.0577 0.2377 77.53
1.0368 0.1639 84.19
Alcojet 1% J1 0.1703 0.0001 99.94 92.33 89.58
0.7401 0.0674 90.89
0.7541 0.1045 86.14
J2 0.9003 0.1824 79.74 86.84
1.0877 0.1512 86.10
0.9777 0.0521 94.67
LF2100 1% J1 0.4414 0.0673 84.75 74.63 82.98
0.3073 0.0926 69.87
0.3941 0.1211 69.27
J2 0.6453 0.0583 90.97 91.33
0.7435 0.0999 86.56
0.8345 0.0296 96.45
Cleaner soil Dirty Visual Clean Visual AVG Clean Visual  AVG Overall
Water J1 5 3 3.5 3.92
5 3.5
5 4
J2 5 4 4.33
5 4.5
5 4.5
Alcojet 1% J1 5 1 2.33 2.92
5 3
5 3
J2 5 4 3.5
5 4
5 2.5
LF2100 1% J1 5 4 3.83 3.08
5 4
5 3.5
J2 5 2 2.33
5 2.5
5 2.5

Success Rating:

Results successful using TACT (time, agitation, concentration, and temperature, as well as rinsing and drying) and/or other cleaning chemistries examined.

Conclusion:

Water is shown to be effective in removing both J1 grease and J2 grease from stainless steel however, the data collected from the coupons cleaned with water includes an outlier.  Alcojet 1% concentration is an effective cleaner in removing both soils from stainless steel.  LF2100 1% is effective in removing J2 grease but not effective in removing J1grease from stainless steel.

Save Report as a PDF