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Trial Number 12

Trial Purpose:

To evaluate aqueous alternatives using ultrasonic energy on second supplied contaminant.

Date Run:

08/07/2008

Experiment Procedure:

Six products from previous trials were selected for testing. Five of the products were diluted to 20% and the sixth product was diluted to 5%. Products were heated to 130 F and immersed in a Branson 40 kHz ultrasonic tank and degassed for at least five minutes.
Eighteen preweighed coupons were coated with the supplied rust preventative using a handheld swab and weighed a second time to determine the amount of soil added. Three coupons were cleaned with ultrasonic energy for five minutes, rinsed in tap water for 15 seconds at 120 F and dried using compressed air at room temperature for 30 seconds. Final weights were recorded, and efficiencies calculated for each coupon cleaned.

Trial Results:

All six products removed more than 85% of the rust preventative, five of which removed more than 97%. The table lists the amount of soil added, the amount remaining and the efficiency for each coupon cleaned.

Cleaner Initial wt Final wt % Removed
Shopmaster LpH 0.2113 0.0024 98.86
  0.1915 0.0065 96.61
  0.1883 0.0083 95.59
Aquavantage 1400 GD 0.2512 0.0046 98.17
  0.2158 0.0040 98.15
  0.2592 -0.0037 101.43
Shopmaster HP 0.2616 0.0286 89.07
  0.2433 0.0361 85.16
  0.2283 0.0221 90.32
Inproclean 3800 0.2791 0.0065 97.67
  0.2603 -0.0034 101.31
  0.2445 0.0022 99.10
Bio T 300 B 0.2305 0.0188 91.84
  0.2645 -0.0003 100.11
  0.2121 0.0044 97.93
SC Aircraft & Metal Cleaner 0.2868 0.0040 98.61
  0.2760 -0.0033 101.20
  0.2607 -0.0005 100.19

Success Rating:

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

Conclusion:

All six will be evaluated next on the supplied grinding fluid.

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