To evaluate client requested products on the sixth supplied soil.
Date Run:
07/08/2004
Experiment Procedure:
The three cleaners were diluted to 5% using DI water in 600 ml beakers at room temperature.
Nine preweighed titanium coupons were coated with ink from a Sharpie marker. The ink was applied first in a side to side manner and then in an up and down direction. Coupons were then weighed a second time to determine the amount of soil added. Three coupons were cleaned for about 2 minutes using a Gardner Straight Line Washability unit. Three coupons were placed into a Gardner Straight Line Washability unit. A Professional Painter's Rag was immersed into a beaker of the cleaning solutions and then attached to the cleaning sled. The cleaning unit was run for 75 cycles (~2 minutes). At the end of the cleaning cycle, coupons were weighed again and efficiencies were calculated.
Trial Results:
One of the three products removed over 85%. The table below lists the amount of soil added, the amount remaining and the efficiency for each coupon cleaned.
Cleaner
Initial wt
Final wt
% Removed
M Aero
0.0019
0.0002
89.47
0.0030
0.0004
86.67
0.0014
0.0002
85.71
M Aero NS
0.0014
0.0003
78.57
0.0024
0.0008
66.67
0.0025
0.0006
76.00
M 400
0.0010
0.0007
30.00
0.0011
0.0008
27.27
0.0014
0.0010
28.57
Success Rating:
Results successful using TACT (time, agitation, concentration, and temperature, as well as rinsing and drying) and/or other cleaning chemistries examined.
Conclusion:
The three supplied products have been tested on six soils. The M Aero was the only product to work on all six contaminants. The M Aero NS worked on all except the ink. With further cleaning time, the ink would have been removed by M Aero NS.
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