To evaluate supplied product for all purpose cleaning at two concentrations using manual cleaning.
Date Run:
07/03/2007
Experiment Procedure:
The supplied cleaning product was used at the delivered concentrations (0.78% and 0.39%). Six preweighed ceramic, six plastic and six steel coupons were coated with 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%) using a handheld 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. AA Wypall X60 reinforced wipe 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 solution was allowed to penetrate for 30 seconds followed by cleaning in the SLW unit for 20 cycles (~33 seconds). At the end of the cleaning, coupons were wiped once with a dry paper towel. Final weights were recorded, and efficiencies were calculated and recorded.
Trial Results:
The table lists the amount of soil added and the amount remaining after cleaning and the product efficiency for each coupon cleaned.
Cleaner
Initial wt
Final wt
% Removed
1:128 Steel
0.0606
0.0050
91.75
0.1925
0.0161
91.64
0.0876
0.0131
85.05
1:256 Steel
0.1592
0.0313
80.34
0.1934
0.0117
93.95
0.0777
0.0055
92.92
1:128 Ceramic
0.9172
0.0576
93.72
0.4495
0.0422
90.61
0.3588
0.0232
93.53
1:256 Ceramic
0.7129
0.0470
93.41
0.2151
0.0864
59.83
0.3346
0.1555
53.53
1:128 Plastic
0.1701
0.0080
95.30
0.0869
0.0034
96.09
0.0830
0.0031
96.27
1:256 Plastic
0.1244
0.0098
92.12
0.1208
0.0066
94.54
0.1597
0.0270
83.09
Success Rating:
A follow up test, usually based on company input.
Conclusion:
The product at the higher dilution had an overall average efficiency over 85% and would be considered effective according to the Mass EPP protocol for an all-purpose cleaner.
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