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Trial Number 3

Trial Purpose:

To evaluate supplied products for all purpose cleaning using manual cleaning.

Date Run:

08/24/2015

Experiment Procedure:

Soil Preparation: A mixture of three cooking oils/greases was made. A melt blend of 33% vegetable shortening, 33% lard, 33% vegetable oil and 1% carbon lampblack was made up fresh for the testing.
Preweighed ceramic, painted steel and plastic coupons were coated with one gram of DCC17 soil on each coupon by using a hand held swab and were allowed to dry for 24 hours at room temperature. The contaminated coupons were weighed again to determine the amount of soil added.
Three coupons were placed into a Gardner Straight Line Washability unit. A Wypall X60 reinforced wipe was attached to the cleaning sled and soaked with 1 spray of cleaner. In addition to that each coupon was sprayed with 1 spray of cleaner. The solution was allowed to penetrate for 30 seconds and followed by 20 cycles (~30 seconds) of cleaning in the SLW unit. An additional wipe cycle was done with one spray of water on each coupon and a new Wypall X60 reinforced wipe for rinsing purposes. Coupons were let to dry 24 hours before reweighting and efficiency was calculated.

Cleaners Evaluated: Soft Scrub All Purpose, Easy Scrub With Lemon

Trial Results:

Cleaner Initial wt Final wt % Removed % Avg. Removed
Soft Scrub All Purpose _ Ceramic        
  0.4758 0.0066 98.61  
  0.4894 0.0400 91.83  
  0.5385 0.0106 98.03 96.16
Soft Scrub All Purpose _ Plastic        
  0.5000 0.0568 88.64  
  0.5169 0.0469 90.93  
  0.5072 0.0253 95.01 91.53
Soft Scrub All Purpose _ Painted Steel        
  0.4751 0.0031 99.35  
  0.5124 0.0035 99.32  
  0.4817 0.0020 99.58 99.42
Easy Scrub With Lemon _ Ceramic        
  0.5546 0.0430 92.25  
  0.4785 0.1190 75.13  
  0.5222 0.1043 80.03 82.47
Easy Scrub With Lemon _ Plastic        
  0.5397 0.0446 91.74  
  0.5172 0.0411 92.05  
  0.6057 0.0439 92.75 92.18
Easy Scrub With Lemon _ Painted Steel        
  0.4659 0.1419 69.54  
  0.4741 0.0066 98.61  
  0.5211 0.0104 98.00 88.72

Success Rating:

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

Conclusion:

Both cleaning agents were effective at removing the contaminants from the surface. However Soft Scrub All Purpose had a higher efficiency than Easy Scrub With Lemon by 7.91%.

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