The three cleaners were diluted to 5% using DI water in 600 ml beakers. All six products were heated to 120 F on a hot plate.
Nine preweighed titanium coupons were coated with client supplied oil, Exxon Mobil DTE Light, using a hand held swab and then weighed a second time to determine the amount of soil added. Three coupons were cleaned in each solution for 5 minutes using stir-bar agitation. Coupons were rinsed in tap water for 15 seconds at 120 F, followed by air blow off at room temperature. Once dry, coupons were weighed a final time and efficiencies for each cleaner were calculated.
Two of the three products removed over 85%. The third product removed just under the 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
|
0.2715
|
0.0000
|
100.00
|
|
|
0.2305
|
0.0010
|
99.57
|
|
|
0.3331
|
0.0014
|
99.58
|
| M Aero NS
|
0.1425
|
0.0006
|
99.58
|
|
|
0.2562
|
0.0015
|
99.41
|
|
|
0.3962
|
0.0002
|
99.95
|
| M 400
|
0.2000
|
0.0478
|
76.10
|
|
|
0.3585
|
0.0390
|
89.12
|
|
|
0.2555
|
0.0279
|
89.08
|