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Trial Number 1

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:

03/10/2025

Experiment Procedure:

Bigone concentration: 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 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 2 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 overnight before having their clean weights recorded. 

Trial Results:

Cleaner Temp Initial wt of cont. Final wt of cont. %Cont Removed Vis. Obs. % AVG
Biogone 0.25 oz/gal 25C 0.0013 0.0003 76.92 Staining left where soil was most concentrated 68.38
0.0013 0.0005 61.54 Staining left where soil was most concentrated
0.0012 0.0004 66.67 Staining left where soil was most concentrated
50C 0.0004 0.0001 75.00 Staining left where soil was most concentrated to the same degree as the previous group 78.33
0.0020 0.0004 80.00 Staining left where soil was most concentrated to the same degree as the previous group
0.0015 0.0003 80.00 Staining left where soil was most concentrated to a lesser degree than the previous group
60C 0.0025 0.0005 80.00 Staining left where soil was most concentrated to a lesser degree than the previous group 81.19
0.0019 0.0004 78.95 Staining left where soil was most concentrated to a lesser degree than the previous group
0.0013 0.0002 84.62 No Visible Staining

Success Rating:

Results successful using TACT (time, agitation, concentration, and temperature, as well as rinsing and drying) and/or other cleaning chemistries examined.

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.

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