To run a second cleaning cycle for one of the supplied products for bathroom cleaning.
Date Run:
07/14/2006
Experiment Procedure:
One supplied cleaning products was used at full strength to clean the coupons previously contaminated with SSL Soil 1 (Bathroom soap scum: Vaseline Dry Skin Lotion 21.4%, Dial Clean Rinsing Body Wash 14.3%, Market Basket Shampoo & Conditioner (Pert) 28.6%, Soft Soap Natural Liquid hand soap 21.4%, Coast Deodorant bar soap 7.2% and Water 7.1%) .
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 Sodiumhypochlorite Ceramic
0.1586
0.0497
68.66
0.1879
0.0094
95.00
0.3361
0.0416
87.62
Round 2
0.1586
0.0237
85.06
0.1879
0.0084
95.53
0.3361
0.0350
89.59
Cogent Sodium hypochlorite Chrome
0.4488
0.0382
91.49
0.3557
0.0320
91.00
0.3266
0.0311
90.48
Round 2
0.4488
0.0216
95.19
0.3557
0.0203
94.29
0.3266
0.0168
94.86
Cogent Sodiumhypochlorite Fiberglass
0.2047
0.0127
93.80
0.4084
0.0155
96.20
0.2858
0.0152
94.68
Round 2
0.2047
0.0003
99.85
0.4084
0.0004
99.90
0.2858
0.0017
99.41
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 94.85% from 89.88%.
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