Trial Purpose:
To determine the efficacy of aqueous cleaners compared to water utilizing VCN equipment.
Date Run:
04/11/2023Experiment 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.
