To run a second cleaning cycle for one of the supplied products for All-purpose cleaning
Date Run:
07/14/2006
Experiment Procedure:
One supplied cleaning products was used at full strength to clean the coupons previously contaminated with the Hucker's Soil Formulation (Jif Creamy Peanut Butter 9.2%, Salted Butter 9.2%, Arrowhead Mills stone ground wheat flour 9.2%, Egg Yolk 9.2%, Evaporated milk 13.8%, Distilled water 45.8%, Printer's ink with boiled linseed oil 0.9%, Shaws saline solution 2.7%).
Three coupons were placed into a Gardner Straight Line Washability unit. A Professional Painter's Rag 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 table lists the amount of soil added, the amount remaining and the percent removed for each coupon cleaned. The values from both rounds of cleaning are listed.
Cleaner
Initial wt
Final wt
% Removed
Cogent Sodium hypochlorite Steel
0.7091
0.0226
96.81
0.5136
0.0527
89.74
0.7826
0.0415
94.70
Round 2
0.7091
0.0050
99.29
0.5136
0.0013
99.75
0.7826
0.0051
99.35
Cogent Sodium hypochlorite Plastic
0.8569
0.0303
96.46
1.0498
0.0299
97.15
0.5279
0.0402
92.38
Round 2
0.8569
0.0018
99.79
1.0498
0.0002
99.98
0.5279
0.0007
99.87
Cogent Sodium hypochlorite Ceramic
0.6902
0.1802
73.89
0.9517
0.2429
74.48
0.8444
0.2760
67.31
Round 2
0.6902
0.1313
80.98
0.9517
0.1735
81.77
0.8444
0.2566
69.61
Success Rating:
A follow up test, usually based on company input.
Conclusion:
The second cycle of cleaning improved the efficiency of the Sodium hypochlorite 0.02% solution. The effectiveness increased to 92.27% from 86.69%.
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