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Trial Number 2

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:

03/26/2025

Experiment 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.

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