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Trial Number 45

Trial Purpose:

To test the effectiveness of Comet Cleaner with Bleach in the removal of Bathroom Soil from various substrates.

Date Run:


Experiment Procedure:

Comet Cleaner with Bleach and a spray bottle of water were gathered to begin testing. Then, 3 coupons of each substrate (ceramic, plastic, chrome) 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 Gardner-scrub Abrasion Tester machine. Wypall cleaning cloths were attached to each of the 3 cleaning blocks used for the test. Each Wypall cloth and all coupons received 2 sprays of water and Comet Cleaner with Bleach was sprinkled across each coupon. The Gardner-scrub Abrasion Tester 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:

Cleaner Substrate Initial wt of cont. Final wt of cont. %Cont Removed % AVG % Overall
Comet Cleaner with Bleach Ceramic 0.0563 0.0035 93.78 80.18 74.04
0.0422 0.0112 73.46
0.0602 0.0145 75.91
Plastic 0.1363 0.0306 77.55 79.00
0.1565 0.0149 90.48
0.0709 0.0220 68.97
Chrome 0.0639 0.0124 80.59 62.95
0.0370 0.0179 51.62
0.0572 0.0248 56.64

Success Rating:

Test showed little or no promise.


Comet Cleaner with Bleach showed limited success in the removal of Bathroom Soil from ceramic, plastic, and chrome substrates. 

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