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Trial Number 7

Trial Purpose:

To evaluate supplied products on third soil type on painted steel coupons.

Date Run:

02/24/2003

Experiment Procedure:

Four supplied cleaning products were diluted with DI water to vendor recommended concentrations for all purpose cleaning. Twelve preweighed 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 and a second set of photographs were taken. Efficiencies were calculated and recorded.

Trial Results:

All four products were successful in removing SSL Soil 3 from painted steel coupons. The table below lists the amount of soil added and removed.
Table 1. Soil Application and Removal

Cleaner Initial wt Final wt % Removed
H2Orange2 0.0344 0.0003 99.13
  0.0684 0.0009 98.68
  0.0330 0.0027 91.82
Super H2O2 0.0495 0.0041 91.72
  0.0875 0.0042 95.20
  0.1052 0.0029 97.24
Free Fall 0.0689 0.0022 96.81
  0.0402 0.0028 93.03
  0.0628 0.0013 97.93
Ecogent 0.0319 -0.0003 100.94
  0.0402 0.0022 94.53
  0.1229 0.0002 99.84

Success Rating:

A follow up test, usually based on company input.

Conclusion:

The overall cleaning performance of the four products tested on SSL Soil 3 are as follows:

SSL Soil 3 Ceramic Plastic Painted Steel Overall Efficiency
H2Orange2 87.38 91.18 96.54 91.70
Super H2O2 85.99 85.51 94.72 88.74
Free Fall 97.10 85.12 95.92 92.72
Ecogent 85.09 74.94 98.44 86.16

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