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Trial Number 2

Trial Purpose:

To evaluate supplied product for all purpose cleaning application

Date Run:

02/07/2006

Experiment Procedure:

The supplied cleaning product was diluted with DI water to vendor recommended concentration for all purpose cleaning (10%). Preweighed ceramic, plastic G-10 and painted 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. Photographs were taken.

Three coupons were placed into a Gardner Straight Line Washability unit. A Professional Painter's Rag 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 cleaning unit was run for 20 cycles (~33 seconds). At the end of the cleaning, coupons were wiped once with a dry paper towel. Final weights were recorded, efficiencies were calculated and recorded.

Trial Results:

The three substrates were effectively cleaned with the supplied product. The table below list the amount of soil added, the amount reaming and the efficiency for each substrate. Additional results for glass cleaning using water was also included for comparative purposes.

  Surface Material Initial wt Final wt % Removed
Soil 3 Ceramic 0.3111 0.0226 92.74
    0.3663 0.0177 95.17
    0.3546 0.0311 91.23
  Plastic 0.2017 0.0025 98.76
    0.2249 0.0033 98.53
    0.6356 0.0020 99.69
  Steel 0.7503 0.0952 87.31
    0.6240 0.0443 92.90
    0.5378 0.0447 91.69

Control

Water Steel 0.2401 0.0297 87.63
    0.4770 0.0744 84.40
    0.1596 0.0283 82.27

Success Rating:

A follow up test, usually based on company input.

Conclusion:

All purpose cleaning was above the 85% cut-off for acceptable cleaning.

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