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Trial Number 6

Trial Purpose:

To evaluate supplied product for all purpose cleaning at two concentrations using manual cleaning.

Date Run:

07/03/2007

Experiment Procedure:

The supplied cleaning product was used at the delivered concentrations (0.78% and 0.39%). Six preweighed ceramic, six plastic and six steel coupons were coated with Hucker's Soil Formulation (Jif Creamy Peanut Butter 9.2%, Salted Butter 9.2%, Arrowhead Mills stone ground wheat flour 9.2%, Egg Yolk 9.2%, Evaporated milk 13.8%, Distilled water 45.8%, Printer's ink with boiled linseed oil 0.9%, Shaws saline solution 2.7%) 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. AA Wypall X60 reinforced wipe 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 table lists the amount of soil added and the amount remaining after cleaning and the product efficiency for each coupon cleaned.

Cleaner Initial wt Final wt % Removed
1:128 Steel 0.0606 0.0050 91.75
  0.1925 0.0161 91.64
  0.0876 0.0131 85.05
1:256 Steel 0.1592 0.0313 80.34
  0.1934 0.0117 93.95
  0.0777 0.0055 92.92
1:128 Ceramic 0.9172 0.0576 93.72
  0.4495 0.0422 90.61
  0.3588 0.0232 93.53
1:256 Ceramic 0.7129 0.0470 93.41
  0.2151 0.0864 59.83
  0.3346 0.1555 53.53
1:128 Plastic 0.1701 0.0080 95.30
  0.0869 0.0034 96.09
  0.0830 0.0031 96.27
1:256 Plastic 0.1244 0.0098 92.12
  0.1208 0.0066 94.54
  0.1597 0.0270 83.09

Success Rating:

A follow up test, usually based on company input.

Conclusion:

The product at the higher dilution had an overall average efficiency over 85% and would be considered effective according to the Mass EPP protocol for an all purpose cleaner.

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