Trial Purpose:
Evaluate effectiveness of Innovative Organics SC11
Date Run:
06/14/1995Experiment 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
