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Trial Number 0

Trial Purpose:

To test the effectiveness of ENZO NRF cleaner in comparison to current cleaner 5229 AFCO LF and LFE Enzymatic cleaner that was previously tested and found successful.

Date Run:

07/17/2023

Experiment Procedure:

Six stainless steel coupons were used for each cleaner, three being the 304 alloy and three being the 316 alloy, for a total of 18 coupons.  The initial weights of each coupon were taken.  The coupons were then soiled with Cedar's Chocolate Hommus by wiping a thin layer, but leaving some chunky spots, on the bottom half of the substrate.  A heat gun was applied to each coupon at its highest temperature for 2 mins each to mimic the pasteurization process that happens within the mixing tanks, allowing the soil to better adhere to the coupons.  After the coupons cooled, their dirty weights were taken.  Six coupons (three 304 and three 316) were subjected to heated ultrasonics using 5229 AFCO LF 1.1% for 20 mins at 160F.  Six coupons (three 304 and three 316) were subjected to heated ultrasonics using LFE Enzymatic Cleaner 2.5% for 20 mins at 130F.  The last six coupons (three 304 and three 316) were subjected to heated ultrasonics using ENZO NRF 2% for 20 mins at 90F.  The coupons then were left to air dry before clean weights were taken.

Trial Results:

Cleaner Soil Substrate Initial wt of cont. Final wt of cont. %Cont Removed % AVG % Overall
5229 AFCO LF 1.1% @ 160F Choco Hummus Stainless Steel Alloy 304 0.1381 0.0134 90.30 80.94 74.69
0.0887 0.0278 68.66
0.0942 0.0152 83.86
Stainless Steel Alloy 316 0.1033 0.0338 67.28 68.45
0.0714 0.0351 50.84
0.2918 0.0373 87.22
LFE Enzymatic Cleaner 2.5% @ 130F Choco Hummus Stainless Steel Alloy 304 0.1939 0.0023 98.81 99.25 98.92
0.2546 0.0020 99.21
0.3370 0.0009 99.73
Stainless Steel Alloy 316 0.2825 0.0076 97.31 98.59
0.3168 0.0042 98.67
0.2388 0.0005 99.79
ENZO NRF 2% @ 90F Choco Hummus Stainless Steel Alloy 304 0.0477 0.0005 98.95 98.41 96.31
0.0336 0.0003 99.11
0.0353 0.0010 97.17
Stainless Steel Alloy 316 0.0465 0.0019 95.91 94.21
0.0373 0.0015 95.98
0.0302 0.0028 90.73

Success Rating:

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

Conclusion:

ENZO NRF 2% @ 90F is an effective cleaner and is comparative to LFE Enzymatic Cleaner using a lower concentration and less heat.

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