Browse Client Types

Browse past lab clients by general industry sectors

Trial Number 4

Client Number 153

Project Number 6

Trial Purpose:

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

Date Run:

05/08/2023

Experiment Procedure:

Eighteen pre weighed brass alloy 280 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 Zymit 1% concentration, Micro 90 1% concentration, and Micro Green Clean 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 were 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
Zymit 1% J1 0.4875 0.1124 76.94 77.17 58.22
0.4930 0.1114 77.40
0.4509 0.1030 77.16
J2 0.6215 0.2774 55.37 39.27
0.4316 0.2821 34.64
0.3065 0.2213 27.80
Micro 90 1% J1 0.6826 0.0830 87.84 83.64 61.81
0.5486 0.0947 82.74
0.3254 0.0640 80.33
J2 0.4444 0.2317 47.86 39.98
0.4363 0.2496 42.79
0.4156 0.2939 29.28
Micro green Clean 1% J1 0.3493 0.0997 71.46 76.44 69.73
0.5914 0.1219 79.39
0.5119 0.1102 78.47
J2 0.7677 0.2258 70.59 63.02
0.7126 0.2653 62.77
0.6758 0.2993 55.71
Cleaner soil Dirty Visual Clean Visual AVG Clean Visual AVG Overall
Zymit 1% J1 5 4 4.3 4.50
5 4
5 5
J2 5 5 4.7
5 5
5 4
Micro 90 1% J1 5 4 4.7 4.83
5 5
5 5
J2 5 5 5
5 5
5 5
Micro Green Clean 1% J1 5 4 4 4.33
5 4
5 4
J2 5 5 4.67
5 4
5 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:

Zymit 1% concentration is slightly effective in removing J1 soil from brass utilizing VCN methods, but not effective in removing J2 soil.  Micro 90 1% concentration is effective in removing J1 soil from brass utilizing VCN methods, but not effective in removing J2 soil.  Micro Green Clean 1% is slightly effective in removing J1 soil from brass utilizing VCN methods, but no effective in removing J2 soil.  

Save Report as a PDF