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Trial Number 0
Trial Purpose:
To evaluate effectiveness of the provided cleaners in regards to removing synthetic blood from stainless steel.
Date Run:
02/03/2018
Experiment 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.
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