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Trial Number 2

Client Number 223

Project Number 1

Trial Purpose:

To evaluate successful products on the third supplied contaminant

Date Run:

05/07/2004

Experiment Procedure:

Six cleaners were selected from the previous trial. All were aqueous based and were diluted to 5% using DI water in 600 ml beakers. All six products were heated to 120 F on a hot plate.

Eighteen 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.

Trial Results:

All six products removed over 97% of the oil in five minutes. Four of the six removed over 99%. The table lists the amount of oil added, the amount remaining and the efficiency for each coupon.

Cleaner Initial wt Final wt % Removed
Aquavantage 1400 GD 0.2562 0.0030 98.83
  0.0385 0.0013 96.62
  0.1300 0.0045 96.54
SC Aircraft & Metal Cleaner 0.1341 0.0005 99.63
  0.1189 0.0006 99.50
  0.0959 0.0010 98.96
Micro 90 0.1076 0.0000 100.00
  0.0963 0.0002 99.79
  0.1903 -0.0001 100.05
Daraclean 282 GF 0.1014 0.0004 99.61
  0.1934 -0.0003 100.16
  0.1102 -0.0001 100.09
Inproclean 3800 0.1903 -0.0004 100.21
  0.1736 0.0003 99.83
  0.2083 0.0001 99.95
Beyond 2004 0.1099 0.0007 99.36
  0.1298 0.0006 99.54
  0.0916 0.0026 97.16

Success Rating:

Results successful using TACT (time, agitation, concentration, and temperature, as well as rinsing and drying) and/or other cleaning chemistries examined.

Conclusion:

The five products that removed over 98% of the oil will be used on the fourth supplied soil under the same conditions.

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