Trial #4
To evaluate an additional five products on the first contaminant
Five products were selected based on success on the fourth supplied contaminant. All five products were used at full strength in a 250 ml beaker. Two products were heated to 96 F on a hot plate and the three Dow products were used at room temperature. Twenty-seven preweighed silver plated copper coupons were coated with the Exxon Mobil Vacmul 03D (94741-44-2) using a hand held swab. Coupons were weighed a second time to determine the amount of soil added to each coupon. Three coupons were cleaned in each solution for 5 minutes using stir-bar agitation. After cleaning parts were weighed a final time and efficiencies were calculated.
All five products tested on the oil removed over 97% in five minutes. The table lists the amount of soil added, the amount remaining and the efficiency for each coupon.
| Cleaner
|
Initial wt
|
Final wt
|
% Removed
|
| Solvon PB
|
0.0662
|
-0.0003
|
100.45
|
|
|
0.1293
|
0.0011
|
99.15
|
|
|
0.1018
|
0.0006
|
99.41
|
| Solvon IP
|
0.0773
|
0.0003
|
99.61
|
|
|
0.0920
|
0.0011
|
98.80
|
|
|
0.0770
|
0.0026
|
96.62
|
| OS 10
|
0.0997
|
0.0021
|
97.89
|
|
|
0.0839
|
0.0005
|
99.40
|
|
|
0.0722
|
0.0014
|
98.06
|
| OS 20
|
0.0944
|
0.0038
|
95.97
|
|
|
0.0976
|
0.0018
|
98.16
|
|
|
0.0616
|
0.0014
|
97.73
|
| OS 30
|
0.1107
|
0.0020
|
98.19
|
|
|
0.0522
|
0.0013
|
97.51
|
|
|
0.0603
|
0.0013
|
97.84
|
The three Dow products will be tested on the second supplied oil.
No relation