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




Surface Solutions Laboratory

Trial Report



Trial Number 471

(Client Number 153, Project Number 1)

Trial Purpose: To test nontoxic industrial cleaning solutions for oil removal

Date Run: 02/10/09

Experiment Procedure:
Products were selected based on the compatibility of substrate and removal of foreign substance. Used 5% concentration and heated the samples at 135F. The steel coupons were immersed in a product for 5 minutes, rinsed for 30 seconds in tap water at 120F and dried in 30 seconds using compressed air is room temperature.

Coupons were coated with used oil. Using a handheld swab and allowed to dry for 144 minutes at room temperature. The contaminated coupons were weighed again to determine the amount of soil added. After cleaning process the final weights were recorded, efficiencies were calculated and recorded.

Trial Results
Cleaner Initial wt   Final wt     % Removed
Kyzen Chemical, Industrial Floor                        
        0.0291        0.0026        91.07
        0.0098        0.0045        54.08
        0.0166        0.0015        90.96
Vertec Biosolvent                        
        0.0432        0.0239        44.68
        0.0357        0.0138        61.34
        0.0200        0.0045        77.50
Seventh Generation                        
        0.0234        0.0145        38.03
        0.5597        0.0569        89.83
        0.0185        0.0061        67.03
Sky Product Cleaner                        
        0.0127        0.0064        49.61
        0.0378        0.0197        47.88
        0.0139        0.0092        33.81


Success Rating
Lab evaluation based on vendor data.

Conclusion
No product removed over 85% of the graffiti from stainless steel using immersion cleaning.