To reevaluate supplied product at two dilution formulations
Date Run:
09/16/2008
Experiment Procedure:
The supplied cleaning product was used at two supplied dilutions, 10:1 and 20:1.
Preweighed ceramic, plastic G-10 and painted 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. 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:
Both dilutions were effective at removing the Hucker's soil from the three substrates. The 10:1 dilution was more effective on two of the three substrates, painted steel and plastic, but was slightly less effective on the ceramic than the 20:1 dilution. Overall, the 20:1 dilution had the higher average efficiency. The table lists the amount of soil added, the amount remaining and the calculated efficiency for each coupon cleaned.
Cleaner
Initial wt
Final wt
% Removed
Heavy 10:1 Ceramic
0.1703
0.0135
92.07
0.3528
0.0349
90.11
0.2479
0.0351
85.84
Heavy 10:1 Steel
0.4030
0.0124
96.92
0.1475
0.0007
99.53
0.8258
0.0176
97.87
Heavy 10:1 Plastic
0.2386
0.0007
99.71
0.1614
0.0023
98.57
0.1714
0.0042
97.55
Heavy 20:1 Ceramic
0.1703
0.0045
97.36
0.3306
0.0055
98.34
0.2127
0.0070
96.71
Heavy 20:1 Steel
0.2307
0.0161
93.02
0.2090
0.0025
98.80
0.4617
0.0370
91.99
Heavy 20:1 Plastic
0.2534
0.0026
98.97
0.2572
0.0023
99.11
0.2945
0.0102
96.54
Success Rating:
A follow up test, usually based on company input.
Conclusion:
Both dilutions removed over 85% of the Hucker's soil and would be considered effective based on the SSL testing methodology.
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