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Trial Number 3

Trial Purpose:

Evaluate effectiveness of Innovative Organics SC11

Date Run:

06/14/1995

Experiment Procedure:

The SC 11 was dilute to the highest and lowest recommended concentrations (2% and 5%). Cleaning was performed in a Crest ultrasonic unit for 15 minutes at 140 F. The parts were then rinsed in a tap water bath and a DI water bath, both rinses were for 2 minutes at 140 F. The parts were then dried under air knives for 2 minutes and under a heat gun for 5 minutes.
All parts were analyzed gravimetricaly to determine a percentage of the oil removed. They were also inspected visually for any spotting or oil residue.

CLEANING CONDITIONS:

  Temperature 
time (min) 2% solution  5% solution
 Crest Ultrasonics  15  130  139
 #1 RINSE/TAP H2O  2  144  144
 #2 RINSE/DEIONIZED H2O  2  80  80
 DRY air knives  2  room  room
 DRY heat gun  2  180  180
 COOL DOWN  overnight  room  room

Trial Results:

GRAVIMETRIC ANALYSIS

2% Innovative Organics SC11

sample # and substrate  clean mass (g)  mass with contamination (g)  mass after cleaning (g)  contaminant removed (g)  Percent Removal
 #1- Clear PC  12.2447  12.2614  12.2462  0.0152  91.02%
 #2- Clear PC  12.3846  12.3914  12.3860  0.0054  79.41%
 #1- Clear ABS  11.1069  11.1225  11.1111  0.0114  73.08%
 #1- White PC  12.8904  12.9270  12.8926  0.0344  93.99%

 

5% Innovative Organics SC11

sample # and substrate  clean mass (g)  mass with contamination (g)  mass after cleaning (g)  contaminant removed (g)  Percent Removal
 #3- Clear PC  11.6793  11.6836  11.6813  0.0023  53.49%
 #4- Clear PC  14.0436  14.0543  14.0457  0.0086  80.37%
 #2- Clear ABS  11.7887  11.7925  11.7927  ‑0.0002  ‑5.26%
 #2- White PC  13.2548  13.2963  13.2576  0.0387  93.25%

Quite a bit of oil was still left on most of the parts.  Gravimetric analysis shows that there was a lousy removal on most parts and water beaded up on surface of the parts indicating oil buildup.  On a brighter note, there were no water spots on the parts after drying it appears that the cold DI rinse solved the problem of spotting that was encountered in previous trials.

Success Rating:

Test showed little or no promise.

Conclusion:

Innovative Organics is ineffective and shouldn't be considered by Biomedical Device Manufacture

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