Trial #25
To test the effectiveness for the removal of bathroom soil from ceramic, chrome, and plastic using Earth Essentials cleaner.
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.
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
|
Earth Essentials was not fully effective for the removal of bathroom soil from all three substrates and some soil was left on the coupons.
No relation