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Trial Number 2

Trial Purpose:

To evaluate products on third supplied contaminant

Date Run:

04/20/2004

Experiment Procedure:

Six products were selected based on client request for vapor degreasing solvents. Each product was used at full strength in a 250 ml beaker and heated to 96 F on a hot plate.
Eighteen preweighed aluminum coupons were coated with the Nisseki SAS 40 oil (27776-01-8, 612-00-0, 103-29-7, 101-81-5) 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 allowed to sit for 10 minutes for drying at room temperature. The coupons were weighed a final time and efficiencies were calculated.

Trial Results:

Four of the six products removed over 85% of the oil from the aluminum coupons within the five minutes of cleaning. The table lists the amount of soil added, the amount remaining and the efficiency for each coupon cleaned.

Cleaner Initial wt Final wt % Removed
HFE 7100 0.0903 0.0012 98.67
  0.1515 0.0020 98.68
  0.1511 -0.0021 101.39
HFE 7200 0.1497 -0.0006 100.40
  0.2091 -0.0043 102.06
  0.1768 -0.0040 102.26
HFE 71DE 0.1683 0.0353 79.03
  0.1773 0.0432 75.63
  0.2291 0.0489 78.66
AK 225 0.2132 0.0078 96.34
  0.2127 -0.0034 101.60
  0.1809 0.0120 93.37
Vertrel CCA 0.1769 0.0105 94.06
  0.1278 0.0173 86.46
  0.1619 0.0325 79.93
Vertrel MCA 0.1083 0.0371 65.74
  0.2009 0.0498 75.21
  0.2183 0.0412 81.13

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 products will be tested on the fourth soil under the same conditions.

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