To evaluate successful cleaner from previous trial on second contaminant.
Date Run:
02/27/2002
Experiment Procedure:
The Gemtek product was diluted to 10% using DI water in a 600 ml beaker and heated to 130 F on a hot plate. Six preweighed coupons were coated with Mobil Oil Corp Mobilarma 245 (64742-88-7) using a hand held swab. Coupons were weighed again. Three coupons were cleaned for 5 minutes and the other three were cleaned for 10 minutes. Both cleaning utilized stir-bar agitation. Coupons were rinsed in tap water at 120 F for 30 seconds and dried using a Master Appliance heat gun at 500 F for 1 minute. Final weights were measured and efficiencies were calculated for the two cleaning times.
Trial Results:
Both cleaning times resulted in complete removal of the Mobilarma 245. The table lists the efficiencies for both cleaning times.
Cleaner
Coupon 1
Coupon 2
Coupon 3
Average
Std Dev
5 Minutes
99.00
102.41
100.00
100.47
1.75
10 Minutes
104.44
102.50
102.44
103.13
1.14
Success Rating:
A follow up test, usually based on company input.
Conclusion:
The next phase of testing will focus on cleaning supplied parts using the Gemtek SC Aircraft & Metal Cleaner.
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