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Trial Number 5

Trial Purpose:

To evaluate three additional products on second 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 Houghton Chemical Cut-Max 135 (64742-52-5, 64741-96-4) 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:

All three products removed over 99% of the oil in five minutes. 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 0.0880 0.0004 99.55
  0.1503 -0.0001 100.07
  0.1211 0.0007 99.42
OS 20 0.1031 -0.0001 100.10
  0.1743 0.0005 99.71
  0.1313 0.0002 99.85
OS 30 0.1355 0.0014 98.97
  0.1048 0.0008 99.24
  0.1512 0.0012 99.21

Success Rating:

A follow up test, usually based on company input.

Conclusion:

The same three products will be tested on the third supplied soil under the same conditions.

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