Trial #6
To evaluate three products on the third supplied soil
Three products were selected based on success on the fourth supplied contaminant. All were used at full strength in a 250 ml beaker at room temperature. Nine preweighed silver plated copper coupons were coated with the Lanson Oil Co Vanish 6912 (6742-48-9) 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.
The three products removed over 95% of the oil in five minutes of immersion cleaning. The table lists the amount of soil added, the amount remaining and the efficiency for each coupon.
| Cleaner
|
Initial wt
|
Final wt
|
% Removed
|
| OS 10
|
0.0807
|
0.0003
|
99.63
|
|
|
0.0885
|
0.0010
|
98.87
|
|
|
0.0570
|
0.0000
|
100.00
|
| OS 20
|
0.0496
|
0.0003
|
99.40
|
|
|
0.0537
|
0.0027
|
94.97
|
|
|
0.0480
|
0.0002
|
99.58
|
| OS 30
|
0.0489
|
0.0012
|
97.55
|
|
|
0.0393
|
0.0014
|
96.44
|
|
|
0.0692
|
0.0044
|
93.64
|
Several products have been found to remove all four of the supplied oils using immersion cleaning. Products need to be evaluated using vapor degreasing.
No relation