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Trial Number 0

Trial Purpose:

To evaluate the effectiveness of the provided cleaners in regards to removing synthetic blood from stainless steel.

Date Run:

03/07/2023

Experiment Procedure:

36 pre-weighed stainless-steel coupons were coated with synthetic blood using a swab and were allowed to air dry (68 F) for 24 hours. One set of 18 coupons was set aside for the cleaner SuperNova 0.1 NpHD Neutral Detergent and the other set of 18 coupons was set aside for SuperNova 0.1 Multi-Enzymatic cleaner. Dirty weights were then recorded. The contaminated coupons were immersed in their respective cleaner in sets of three at a temperature of 160 F for SuperNova NpHD for two minutes and 140 F for SuperNova Multi-Enzymatic for two minutes. Following immersion, coupons were rinsed three times in a de-ionized water bath for one minute and dried for 24 hours before the final weights were recorded.

Trial Results:

Table 1: SuperNova 0.1 NpHD and 0.1 Multi-Enzymatic Cleaner Results

Cleaner Initial wt of cont. Final wt of cont. %Cont Removed Average % Removal Overall Average % Removal
SuperNova 0.1 NpHD Neutral Detergent-CSNB01G  0.0064 0.0023 64.06 60.11 74.77
0.0038 0.0018 52.63
0.0011 0.0004 63.64
0.0030 0.0008 73.33 67.52
0.0047 0.0021 55.32
0.0023 0.0006 73.91
0.0058 0.0006 89.66 88.87
0.0031 0.0007 77.42
0.0218 0.0001 99.54
0.0030 0.0001 96.67 86.15
0.0093 0.0031 66.67
0.0143 0.0007 95.10
0.0044 0.0002 95.45 78.00
0.0046 0.0015 67.39
0.0052 0.0015 71.15
0.0038 0.0013 65.79 67.96
0.0063 0.0015 76.19
0.0042 0.0016 61.90
SuperNova 0.1 Multi-Enzymatic Cleaner-CSNC01G 0.0086 0.0010 88.37 75.97 81.97
0.0055 0.0017 69.09
0.0044 0.0013 70.45
0.0042 0.0008 80.95 81.72
0.0038 0.0006 84.21
0.0040 0.0008 80.00
0.0026 0.0004 84.62 81.47
0.0034 0.0008 76.47
0.0042 0.0007 83.33
1.0099 0.0072 99.29 77.38
0.0019 0.0007 63.16
0.0033 0.0010 69.70
0.0070 0.0007 90.00 88.37
0.0029 0.0004 86.21
0.0036 0.0004 88.89
0.0042 0.0006 85.71 86.92
0.0050 0.0011 78.00
0.0034 0.0001 97.06

While SuperNova 0.1 NpHD Cleaner had some high contaminant removal percentages, SuperNova 0.1 Multi-Enzymatic Cleaner was overall more consistent with its average removal of the synthetic blood on stainless steel.

Success Rating:

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

Conclusion:

SuperNova 0.1 Multi-Enzymatic Cleaner was more effective at removing synthetic blood from stainless steel with an overall average removal of 81.97%. SuperNova 0.1 NpHD Neutral Detergent was slightly less effective with an overall average removal of 74.77%.

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