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Trial Number 5

Client Number 38

Project Number 2

Trial Purpose:

To reevaluate previously tested products using ultrasonics and heat.

Date Run:

09/23/2008

Experiment Procedure:

Nine products were selected from the previous four trials based on partial success on removing the supplied soils. Six products were diluted to 5% using DI water in 400 ml beakers. The other three were used at full strength based on vendor recommendations. Beakers were immersed and heated to 130 F in a Branson 40 kHz ultrasonic tank. Solutions were degassed for five minutes.

Twenty-seven preweighed steel coupons were coated with the rust preventative VCI 325 using a hand held swab. Coupons were weighed again to determine the amount of soil added. Three coupons were cleaned in each solution for 10 minutes using ultrasonic energy. Coupons were rinsed for 15 seconds in tap water at 120 F and dried using compressed air at room temperature for 30 seconds. Final weights were recorded and efficiencies calculated.

Trial Results:

Eight of the nine products removed over 90% of the rust preventative. The Citrus Soy was the only product not remove enough of the soil to be considered to be effective. The table lists the amount of soil added, the amount remaining and the efficiency for each coupon cleaned.

Cleaner Initial wt Final wt % Removed
Aquavantage 1400 GD
  0.1039 0.0001 99.90
  0.1104 0.0041 96.29
  0.1373 0.0039 97.16
Grease Feast
  0.1240 0.0056 95.48
  0.1288 0.0080 93.79
  0.1534 0.0054 96.48
SC Aircraft & Metal Cleaner
  0.1393 0.0049 96.48
  0.1340 0.0005 99.63
  0.1587 0.0030 98.11
SC MaxiSolve
  0.1125 0.0039 96.53
  0.1569 0.0018 98.85
  0.1163 0.0001 99.91
Ozzy Juice SW1
  0.1678 0.0010 99.40
  0.1769 0.0028 98.42
  0.1448 0.0010 99.31
Smart Solve 605
  0.0953 0.0007 99.27
  0.1604 0.0063 96.07
  0.1295 0.0058 95.52
Citrus Soy Solvent Cleaner & Degreaser
  0.1257 0.0280 77.72
  0.1778 0.0361 79.70
  0.1619 0.0264 83.69
Bean-e-doo
  0.1623 0.0001 99.94
  0.1658 0.0075 95.48
  0.1190 0.0085 92.86
Ionox HC2
  0.1476 0.0118 92.01
  0.0911 0.0040 95.61
  0.2087 0.0168 91.95

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 eight effective products will be tested on the second supplied contaminant using the same operating conditions.

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