Trial Purpose:
To test the efficacy of Biogone concentration: 0.25 oz/gal in removing synthetic blood from stainless steel at various temperatures
Date Run:
03/25/2025Experiment Procedure:
Biogone at a concentration of 0.25oz/gal was tested at three temperatures: 25C, 50C, and 60C. Three stainless steel coupons were chosen for each temperature tested for a total of nine coupons. Each coupon was weighed and had their initial weights recorded. The coupons were then soiled with the provided synthetic blood by using a disposable pipette and swab to wipe the blood on the lower third of each coupon (where the coupon would come in contact with the cleaning agent during immersion). The coupons were left to air dry for 24 hours before having their dirty weights recorded. The coupons were then subjected to 3 minutes of immersion in the Biogone 0.25oz/gal at their respective temperatures with a stir bar set to 200 rpm. After cleaning, each coupon was rinsed in a DI water bath for 1 minute with a stir bar set to 200 rpm. The coupons were left to air dry for 5 days before having their clean weights recorded.
Trial Results:
| Product | Coupon | Initial wt | Dirty wt | Clean wt. | Initial wt of cont. | Final wt of cont. | %Cont Removed | % AVG |
| Biogone 25ºC (0.25oz/gal) | 19 | 60.3358 | 60.3409 | 60.3386 | 0.0051 | 0.0028 | 45.10 | 48.58 |
| 25 | 49.5633 | 49.5674 | 49.5654 | 0.0041 | 0.0021 | 48.78 | ||
| 32 | 49.5053 | 49.5134 | 49.5092 | 0.0081 | 0.0039 | 51.85 | ||
| Biogone 50ºC (0.25oz/gal) | 2 | 49.4279 | 49.4343 | 49.4292 | 0.0064 | 0.0013 | 79.69 | 76.07 |
| 20 | 49.3835 | 49.3900 | 49.3852 | 0.0065 | 0.0017 | 73.85 | ||
| 18 | 49.4579 | 49.4654 | 49.4598 | 0.0075 | 0.0019 | 74.67 | ||
| Biogone 60ºC (0.25oz/gal) | 28 | 60.0881 | 60.0926 | 60.0892 | 0.0045 | 0.0011 | 75.56 | 78.70 |
| 7 | 58.9648 | 58.9701 | 58.9658 | 0.0053 | 0.0010 | 81.13 | ||
| 1 | 49.2973 | 49.3075 | 49.2994 | 0.0102 | 0.0021 | 79.41 |
Success Rating:
Preliminary compatibility tests on substrate coupons encouraging for at least one cleaning chemistry. More in-depth laboratory testing necessary.Conclusion:
As the temperature increases, the performance of the Biogone 0.25oz/gal improves. Cleaning at all three temperatures were not able to consistently remove staining.
