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Trial Number 1

Trial Purpose:

Abraision Testing of Series 2

Date Run:

09/17/2015

Experiment Procedure:

Initial weights of stainless steel coupons were recorded and then coated with 0.5 grams of DCC-17 soil. The coupons air dried overnight and dirty weights were recorded the next day. A clean 5 gallon bucket was filled to the 4 gallon marker 3 times with water from the lotus pro. In a clean 1000ml glass beaker, ozonated water was collected to the 800ml marker. Three dirty coupons were placed on the abrasion machine at a time per abrasion trial. Using a spray nossil, the ozone water was sprayed once on each dirty coupon and then once on a wypal towel. The machine ran for 20 cycles (30 seconds of cleaning), and then the clean coupons were removed to air dry overnight on a tray. This process was repeated for the 30min, 60min, 120min, 240min, and 1440min mark for Series 2 with the same sample of ozone water per trial. Clean weights were recorded for percentage removal the next day.

DCC-17-33% vegetable shortening; 33% lard; 33% vegetable oil; 1% carbon lampblack.

Trial Results:

Trial 1    

Cleaner Coupon # Initial wt Final wt % Removed
03 (0 Min) 17 0.5014 0.0247 95.07
03 (0 Min) 10 0.5042 0.0452 91.04
03 (0 Min) 4 0.5048 0.0377 92.53
03 (60 Min) 8 0.5084 0.0219 95.69
03 (60 Min) 7 0.5018 0.0351 93.01
03 (60 Min) 20 0.4970 0.0241 95.15
03 (120 Min) 9 0.5038 0.0230 95.43
03 (120 Min) 31 0.4482 0.0292 93.49
03 (120 Min) 21 0.4966 0.0174 96.50
03 (240 Min) 15 0.5083 0.0266 94.77
03 (240 Min) 6 0.9964 0.5168 48.13
03 (240 Min) 23 0.9416 0.0200 97.88
03 (1440 Min) 18 0.4941 0.0286 94.21
03 (1440 Min) 2 0.5035 0.0250 95.03
03 (1440 Min) 3 0.5037 0.0310 93.85
Cleaner Coupon # Initial wt Final wt % Removed
03 (0 Min) 17 0.4628 0.0474 89.76
03 (0 Min) 22 0.5071 0.0429 91.54
03 (0 Min) 21 0.5021 0.0383 92.37
03 (60 Min) 7 0.5022 0.0365 92.73
03 (60 Min) 4 0.4956 0.0466 90.60
03 (60 Min) 11 0.4974 0.0493 90.09
03 (120 Min) 1 0.4958 0.0372 92.50
03 (120 Min) 6 0.5048 0.0347 93.13
03 (120 Min) 4 0.4980 0.0304 93.90
03 (240 Min) 13 0.4947 0.0338 93.17
03 (240 Min) 16 0.5037 0.0343 93.19
03 (240 Min) 7 0.4998 0.0292 94.16
03 (1440 Min) 2 0.4827 0.0327 93.23
03 (1440 Min) 3 0.5091 0.0303 94.05
03 (1440 Min) 5 0.5035 0.0278 94.48

Trial 3

Cleaner Coupon # Initial wt Final wt % Removed
03 (0 Min) 28 0.4902 0.0249 94.92
03 (0 Min) 26 0.5032 0.0321 93.62
03 (0 Min) 38 0.4989 0.0229 95.41
03 (60 Min) 19 0.5024 0.0282 94.39
03 (60 Min) 20 0.5039 0.0323 93.59
03 (60 Min) 28 0.5046 0.0358 92.91
03 (120 Min) 12 0.5066 0.0191 96.23
03 (120 Min) 41 0.5084 0.0101 98.01
03 (120 Min) 26 0.5007 0.0122 97.56
03 (240 Min) 1 0.4987 0.0293 94.12
03 (240 Min) 27 0.5109 0.0221 95.67
03 (240 Min) 11 0.5028 0.0251 95.01
03 (1440 Min) 22 0.5061 0.0232 95.42
03 (1440 Min) 24 0.4952 0.0183 96.30
03 (1440 Min) 8 0.4982 0.0192 96.15

Success Rating:

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

Conclusion:

Cleaning remained fairly constant over the 24 hour period.

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