To evaluate supplied product on two substrates for glass soap scum removal.
Date Run:
11/15/2005
Experiment Procedure:
The supplied cleaning product was diluted to vendor recommended concentration for glass cleaning (1.56%). The product was diluted with DI water.
Three preweighed chrome and three glass coupons were coated with SSL Soil 2 (Glass soap scum: Colgate Regular shaving cream 5.3%, Arid Extra Extra Spray Deodorant 3.5%, Suave Naturals Flexible Hold hair spray 3.7%, Aleeda Texturizing hair gel 25.6% Colgate Total toothpaste 10.4%, Water 51.5%) by pump spraying the mix. The soil was 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 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 5 cycles (~9 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 product removed over 88% of the soil from the two substrates. The table below lists the amount of soil applied and removed from the coupons.
Substrate
Initial wt
Final wt
%Eff.
Glass
0.0602
0.0075
87.54
0.0621
0.0065
89.53
0.0394
0.0042
89.34
Chrome
0.0860
0.0067
92.21
0.0611
0.0121
80.20
0.0685
0.0065
90.51
Success Rating:
A follow up test, usually based on company input.
Conclusion:
The overall efficiency of the glass cleaner was 88.22, passing the cut off of 85% established for the Massachusetts EPP janitorial cleaning evaluations.
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