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Trial Number 25

Trial Purpose:

To test the effectiveness for the removal of bathroom soil from ceramic, chrome, and plastic using Earth Essentials cleaner.

Date Run:


Experiment Procedure:

Three coupons of each substrate (ceramic, chrome, and plastic) were collected and initial weights were taken. Bathroom soil was applied to each coupon and allowed to air dry for 24 hours. After the 24 hour dry time, the weights of the newly contaminated coupons were measured. All coupons were placed into a Straight-Line Washability (SLW) machine. A KC Wypall cleaning cloth was attached to the cleaning block used for the test. The Wypall cloth and all coupons received 2 sprays of the Earth Essentials Cleaner and the SLW machine was run for 20 repetitions, simulating 20 manual wipes. Once cleaning concluded, the cleaned coupons were allowed to air dry for 24 hours. After 24 hours, the weights of the cleaned coupons were measured.

Trial Results:

The highest removal effectiveness was plastic with 79% removal. Next was chrome with 78% removal and ceramic with 76% removal. Soil was left on the surface of all three substrates. 

Substrate Initial wt. of cont. Final wt. of cont Average Combined Average
Ceramic 0.1830 0.0503 72.51 75.89
0.1548 0.0374 75.84
0.1939 0.0401 79.32
Chrome 0.1931 0.0282 85.40 77.60
0.1561 0.0229 85.33
0.2209 0.0838 62.06
Plastic 0.1451 0.0359 75.26 79.46
0.0965 0.0182 81.14
0.1010 0.0182 81.98

Success Rating:

Preliminary compatibility tests on substrate coupons encouraging for at least one cleaning chemistry. More in-depth laboratory testing necessary.


Earth Essentials was not fully effective for the removal of bathroom soil from all three substrates and some soil was left on the coupons. 

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