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Trial Number 0

Trial Purpose:

Evaluate the ability of the three cleaners (E-Mop, Lysol Power Bath Cleaner, Scrubbing Bubbles) on air dried DCC 17 soil on five different substrates (stainless steel, plastic, porcelain, granite, wood) using SLW.

Date Run:

04/05/2019

Experiment Procedure:

Three cleaners were compared, E-Mop, Lysol Power Bath Cleaner and Scrubbing Bubbles. The three substrates cleaned were stainless steel, plastic, and porcelain. The contaminant used was DCC 17 soil. The DCC 17 soil was made using 33 wt.% vegetable shortening, 33 wt.% lard, 33 wt.% vegetable oil, and 1 wt.% carbon lampblack. The soil was kept heated between 50-55 °C. The coupons’ initial weights were taken and then about 0.5000 g of DCC 17 soil was applied to each coupon. The coupons were sat to dry at room temperature for at least 24 hours. Once dried, the contaminated weights were taken, three coupons of each substrate were placed in the SLW unit, and a KC Wypal reinforced paper towel was attached to the cleaning sled and treated with two sprays of cleaning solution. Each coupon was sprayed twice with the same cleaning solution. The cleaning unit was run for 20 cycles (equivalent of 30 seconds of cleaning). At the end of the cleaning cycle, the coupons were wiped once with a dry paper towel. Coupons dried overnight and final weights were recorded. Efficiencies were calculated and recorded.

Trial Results:

E-Mop

Substrate Initial wt of cont. Final wt of cont. %Cont Removed % Average
Stainless Steel        
  0.5003 0.0569 88.62 89.59
0.5123 0.0583 88.61
0.5055 0.0428 91.53
Plastic        
  0.5047 0.0131 97.40 97.10
0.5088 0.0223 95.62
0.5554 0.0096 98.27
Porcelain        
  0.4914 0.0236 95.20 95.95
0.5645 0.0228 95.96
0.5365 0.0177 96.70
Granite        
  0.5726 0.0012 99.79 98.72
0.5809 0.0138 97.62
0.5630 0.0071 98.74
Wood        
  0.5249 0.1303 75.18 65.02
0.5064 0.3015 40.46
0.6517 0.1342 79.41

Lysol Power Bath Cleaner

Substrate Initial wt of cont. Final wt of cont. %Cont Removed % Average
Stainless Steel        
  0.5479 0.0533 90.27 94.73
0.6386 0.0162 97.46
0.5751 0.0204 96.45
Plastic        
  0.5738 0.0155 97.30 94.66
0.5814 0.0523 91.00
0.4986 0.0215 95.69
Porcelain        
  0.5103 0.0316 93.81 92.24
0.5069 0.0362 92.86
0.4873 0.0484 90.07
Granite        
  0.5262 0.0186 96.47 97.20
0.4924 0.0144 97.08
0.6097 0.0118 98.06
Wood        
  0.5846 0.1514 74.10 73.96
0.6909 0.1689 75.55
0.6681 0.1855 72.23

Scrubbing Bubbles

Substrate Initial wt of cont. Final wt of cont. %Cont Removed % Average
Stainless Steel        
  0.5640 0.0480 91.49 90.18
0.5331 0.0573 89.25
0.5850 0.0596 89.81
Plastic        
  0.6284 0.0497 92.09 90.89
0.5403 0.0610 88.71
0.5033 0.0409 91.87
Porcelain        
  0.4860 0.0286 94.12 93.32
0.5319 0.0299 94.38
0.5301 0.0453 91.45
Granite        
  0.5376 0.0360 93.30 93.32
0.5391 0.0247 95.42
0.5402 0.0473 91.24
Wood        
  0.5769 0.1055 81.71 77.92
0.6051 0.1520 74.88
0.6089 0.1390 77.17

Success Rating:

A cleanliness study, addressing only various analytical techniques.

Conclusion:

Lysol Power Bath Cleaner had the highest overall removal percentage for every substrate with a 90.56%, followed by the E-mop cleaner having the second highest overall removal percentage for every substrate with an 89.28% overall removal of contaminant. The least effective cleaner for overall removal of contaminant was Scrubbing Bubbles with an overall removal percentage of 89.13%. 

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