To evaluate an additional set of cleaners for toilet bowl cleaning
Date Run:
02/23/2011
Experiment Procedure:
Pre-weighed ceramic, porcelain coupons were coated with Hucker's Soil Formulation (Jiffy creamy peanut butter, salted butter, Arrowhead Mills stone ground wheat flour, egg yolk, evaporated milk, distilled water, printer's ink with boiled linseed oil, Shaws saline solution) 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.
Three coupons were placed into a Gardner Straight Line Washability unit. A Kimberly-Clark Wypal reinforced paper towel 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.
Products were selected based on toilet bowl cleaning needs and health and safety options.
Trial Results:
All of the products tested performed better on the porcelain surface as compared with the ceramic. Only one product, PC 101 had an overall average greater than 85% for the combined surface cleanings. The table lists the amount of soil added, the amount remaining and the efficiency for each coupon cleaned.
Cleaner
Initial wt
Final wt
% Removed
Surface Efficiency
Overall efficiency %
Ceramic TMI bathroom cleaner
0.0665
0.0403
39.40
32.41
58.76
0.0799
0.0398
50.19
0.0758
0.0700
7.65
Porcelain TMI bathroom cleaner
0.0847
0.0105
87.60
85.11
0.0509
0.0076
85.07
0.0519
0.0090
82.66
Ceramic Clorox 409
0.0557
0.0273
50.99
63.34
77.20
0.0969
0.0113
88.34
0.0584
0.0288
50.68
Porcelain Clorox 409
0.0606
0.0142
76.57
91.06
0.1825
0.0053
97.10
0.1060
0.0005
99.53
Ceramic RMS Tough Job
0.1234
0.0196
84.12
75.60
78.95
0.0302
0.0085
71.85
0.1052
0.0307
70.82
Porcelain RMS Tough Job
0.0591
0.0094
84.09
82.31
0.0379
0.0052
86.28
0.0891
0.0209
76.54
Ceramic Delta
0.0821
0.0308
62.48
57.92
73.44
0.0859
0.0236
72.53
0.0480
0.0294
38.75
Porcelain Delta
0.0736
0.0033
95.52
88.95
0.0528
0.0086
83.71
0.0517
0.0064
87.62
Ceramic MD Stetson PC101
0.0619
0.0062
89.98
80.63
86.62
0.0537
0.0189
64.80
0.0968
0.0125
87.09
Porcelain MD Stetson PC101
0.0632
0.0066
89.56
92.62
0.0571
0.0059
89.67
0.0440
0.0006
98.64
Ceramic Active Ion
0.0559
0.0386
30.95
44.88
66.50
0.0767
0.0383
50.07
0.0897
0.0416
53.62
Porcelain Active Ion
0.0452
0.0050
88.94
88.11
0.0360
0.0034
90.56
0.0330
0.0050
84.85
Success Rating:
A follow up test, usually based on company input.
Conclusion:
One product had an overall average greater than 85% for the toilet bowl soil removal.
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