Trial Purpose:
To evaluate effectiveness of the provided cleaners in regards to removing synthetic blood from stainless steel.
Date Run:
02/02/2018Experiment Procedure:
Twelve pre-weighed stainless-steel coupons were soiled with synthetic blood using a swab and allowed to air dry for 24 hours before recording dirty weights. Two additional coupons were weighed but not soiled to provide a control. Two cleaners were prepared using the specified dilutions and temperature: Biogone (RTU at 22 C); Biogone (1:1 at 22 C).
Six coupons per cleaner were immersed in a beaker for two minutes. Coupons were rinsed in a DI water bath and dried for 48 hours before recording clean weights.
Trial Results:
| Cleaner | Initial Wt | Final Wt | %Removal | Average |
|
Biogone RTU |
0.0020 | 0.0005 | 75.00 |
65.07 |
| 0.0029 | 0.0013 | 55.17 | ||
| 0.0101 | 0.0015 | 85.15 | ||
| 0.0143 | 0.0009 | 93.71 | ||
| 0.0037 | 0.0023 | 37.84 | ||
| 0.0062 | 0.0035 | 43.55 | ||
| 0.0046 | 0.0003 | - | Control | |
|
Biogone 1:1 |
0.0067 | 0.0035 | 47.76 |
40.23
|
| 0.0089 | 0.0043 | 51.69 | ||
| 0.0132 | 0.0082 | 37.88 | ||
| 0.0075 | 0.0033 | 56.00 | ||
| 0.0092 | 0.0092 | 0.00 | ||
| 0.0052 | 0.0027 | 48.08 | ||
| 0.0019 | 0.0008 | - | Control |
Success Rating:
Preliminary compatibility tests on substrate coupons encouraging for at least one cleaning chemistry. More in-depth laboratory testing necessary.Conclusion:
Both dilutions of Biogone were not effective. The RTU dilution was about 25% more effective than the 1:1 dilution. The same ranking was observed using visual analysis.
