To evaluate three products on the third supplied soil
Date Run:
05/07/2004
Experiment Procedure:
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.
Trial Results:
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
Success Rating:
A follow up test, usually based on company input.
Conclusion:
Several products have been found to remove all four of the supplied oils using immersion cleaning. Products need to be evaluated using vapor degreasing.
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