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Trial Number 1

Trial Purpose:

To evaluate supplied products for GS 37 al purpose cleaning performance

Date Run:

01/14/2010

Experiment Procedure:

The supplied cleaning products were used at the recommended concentrations (4 oz per gallon). A third product, selected by the lab, was diluted with DI water to vendor recommended dilution (1:64) for all purpose cleaning. Preweighed ceramic, painted steel and plastic coupons were coated with Hucker's Soil Formulation (Jif Creamy Peanut Butter 8.8%, Salted Butter 8.8%, Arrowhead Mills stone ground wheat flour 8.8%, Egg Yolk 8.8%, Evaporated milk 13.3%, Distilled water 44.2%, Printer's ink with boiled linseed oil 0.9%, Shaws saline solution 2.7%, India Ink 3.7%) using a hand held swab and 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 Kimberly Clark Reinforced paper towel was attached to the cleaning sled and soaked with 5-7 sprays of cleaning solutions. Each coupon was sprayed 7-10 times with the same cleaning solution. The solution was allowed to penetrate for 30 seconds followed by cleaning in the SLW unit for 20 cycles (~33 seconds). At the end of the cleaning, coupons were wiped once with a dry paper towel. Final weights were recorded and efficiencies were calculated and recorded.

Trial Results:

The two supplied DFC products removed more than 85% of the all purpose soil (Hucker's soil) using manual cleaning simulation for 30 seconds. Both products worked better then the conventional product. The table lists the amount of soil added, the amount remaining and the removal efficiency for each coupon cleaned.

Cleaner Initial wt Final wt % Removed
DFC Heavy Duty Ceramic      
  0.2098 0.0250 88.08
  0.1241 0.0209 83.14
  0.1407 0.0112 92.04
DFC Heavy Duty Painted Steel      
  0.2285 0.0176 92.30
  0.1552 0.0157 89.88
  0.1823 0.0145 92.05
DFC Heavy Duty Plastic      
  0.0926 0.0078 91.58
  0.0865 0.0100 88.44
  0.0952 0.0013 98.63
DFC 14000 Ceramic      
  0.0640 0.0060 90.63
  0.1241 0.0412 66.80
  0.1739 0.0121 93.04
DFC 14000Painted Steel      
  0.0953 0.0148 84.47
  0.2001 0.0224 88.81
  0.0712 0.0071 90.03
DFC 14000 Plastic      
  0.1265 0.0241 80.95
  0.1029 0.0042 95.92
  0.0832 0.0096 88.46
Alpha HP Ceramic      
  0.0958 0.0210 78.08
  0.1018 0.0048 95.28
  0.1614 0.0073 95.48
Alpha HP Painted steel      
  0.1157 0.0165 85.74
  0.0483 0.0145 69.98
  0.0386 0.0154 60.10
Alpha HP Plastic      
  0.0895 0.0020 97.77
  0.0627 0.0035 94.42
  0.0389 0.0200 48.59

Success Rating:

A follow up test, usually based on company input.

Conclusion:

The DFC Heavy Duty Degreaser and the DFC 14000 both removed more than 85% of the soil and would be considered effective all purpose cleaners.

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