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Trial Number 4
Trial Purpose:
To evaluate the removal of synthetic blood from stainless steel substrates
Date Run:
03/20/2019
Experiment Procedure:
Three pre-weighed stainless-steel coupons were coated with about 0.5 g of synthetic blood using a cotton swab and allowed to air dry (68F) for 24 hours. Dirty weights were recorded before immersing coupons into the RTU cleaner provided by the Case Medical at room temperature (68F) for 5 minutes. Coupons were rinsed three times in a de-ionized water bath for one minute and dried for 24 hours before recording the final weights.
Trial Results:
Biogone Disinfectant efficiently removed synthetic blood from stainless steel coupons gravimetrically. While the substrates were being immersed, the cleaner visually changed to a pinkish color showing an indication of partial soil removal. Each coupon had a visible spotted residue after immersion. Once the coupons were rinsed and air dried, the residue was minimal.
Cleaner
Substrate
Initial Weight of Cont
Final Weight of Cont
% Cont Removed
% Average
Biogone Disinfectant RTU
Stainless Steel
0.0059
0.0003
94.9%
97.2%
0.0059
0.0001
98.3%
0.0121
0.0002
98.3%
Success Rating:
A cleanliness study, addressing only various analytical techniques.
Conclusion:
The cleaner, Biogone Disinfectant RTU, was effective in removing synthetic blood from stainless steel coupons with an overall average removal of 97%. The results were verified with visual observations.
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