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Toxics Use Reduction Institute · Surface Solutions Laboratory
 
Toxics Use Reduction Institute




Surface Solutions Laboratory

Trial Report



Trial Number 2

(Client Number 220, Project Number 1)

Trial Purpose: To evaluate products on third supplied contaminant

Date Run: 04/20/04

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.