To evaluate the cleaning ability of supplied products for toilet cleaning
Date Run:
02/07/2011
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.
Trial Results:
The supplied Purac cleaner removed 85% of the Hucker’s soil on ceramic coupon but only 81% from the porcelain. The table lists the amount of soil added, the amount remaining after cleaning and the calculated efficiency for each of the ceramic and porcelain coupons cleaned.
Cleaner
Initial wt
Final wt
% Removed
AVG
Purac Toilet Cleaner
Ceramic
0.2699
0.0198
92.66
85.50
0.0715
0.0094
86.85
0.1534
0.0353
76.99
Porcelain
0.0922
0.0060
93.49
81.59
0.0606
0.0117
80.68
0.0435
0.0128
70.57
Comet Bathroom Cleaner
Ceramic
0.1510
0.0244
83.84
87.19
0.1497
0.0119
92.05
0.1249
0.0179
85.67
Porcelain
0.0634
0.0104
83.60
84.48
0.0915
0.0069
92.46
0.0274
0.0062
77.37
Success Rating:
A follow up test, usually based on company input.
Conclusion:
The supplied Purac product did not average more than 85% removal of the Hucker’s soil from both surfaces. However, based on gravimetric analysis, the Purac Toilet Cleaner was as effective as the conventional cleaner, Comet Bathroom cleaner.
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