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To evaluate supplied products for GS 37 al purpose cleaning performance
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.
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|
|DFC Heavy Duty Painted Steel|
|DFC Heavy Duty Plastic|
|DFC 14000 Ceramic|
|DFC 14000Painted Steel|
|DFC 14000 Plastic|
|Alpha HP Ceramic|
|Alpha HP Painted steel|
|Alpha HP Plastic|
Success Rating:A follow up test, usually based on company input.
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.