A non-client test evaluating the effectiveness of solid dish soap against comparative liquid dish soaps using a dish brush to remove ASTM 4009 Soil B from ceramic plates.
Date Run:
09/08/2020
Experiment Procedure:
Basic cleaning performance testing was conducted using ASTM G122 as the bases for cleaning.
Initial weights of eleven clean ceramic plates per dish soap were taken before soiling with six grams of 4009 Soil B (50% All-Purpose Flour, 48% Crisco Shortening, and 2% Olive Oil) and air-dried for 24 hours at room temperature (68˚F). Dirty weights were taken the next day. The dish soaps, both solid and liquid, were placed on a flat surface before swirling a new soap dish brush per product for five seconds to pick up the soap. Four liters of tap water heated to 120°F, which was recorded when poured sequentially into the washing basin. Twenty seconds after the reservoir was prepared, the manual cleaning method began. Each plate was washed at an angle, half-submerged in the water, cleaning both the front and back sides of each plate with the brush in a circular motion for 10 seconds before a one-second rinse with cold tap water and air-dried for 24 hours. This process was repeated for each of the dish soaps. Final weights were taken the next day.
Trial Results:
Cleaner
Initial wt
Cont. wt
Clean wt.
Initial wt of cont.
Final wt of cont.
%Cont Removed
Average % Removal
Ardent Goods Dish Soap
438.98
441.39
439.15
2.4100
0.1700
92.95
95.19
480.75
483.10
480.83
2.3500
0.0800
96.60
428.11
430.87
428.22
2.7600
0.1100
96.01
459.92
462.51
459.97
2.5900
0.0500
98.07
433.87
436.78
433.90
2.9100
0.0300
98.97
466.05
468.80
466.09
2.7500
0.0400
98.55
417.47
420.12
417.60
2.6500
0.1300
95.09
465.12
467.55
465.18
2.4300
0.0600
97.53
401.54
404.13
401.80
2.5900
0.2600
89.96
397.48
399.79
397.58
2.3100
0.1000
95.67
453.77
456.29
453.83
2.5200
0.0600
97.62
Dawn Liquid Dish Soap
429.90
432.30
430.09
2.4000
0.1900
92.08
95.98
468.17
470.68
468.28
2.5100
0.1100
95.62
436.58
438.96
436.64
2.3800
0.0600
97.48
464.19
466.71
464.32
2.5200
0.1300
94.84
468.93
471.44
468.92
2.5100
-0.0100
100.40
425.55
428.25
425.59
2.7000
0.0400
98.52
421.92
424.50
422.00
2.5800
0.0800
96.90
410.67
413.53
410.79
2.8600
0.1200
95.80
446.79
449.20
446.87
2.4100
0.0800
96.68
449.85
452.36
449.94
2.5100
0.0900
96.41
469.38
471.73
469.60
2.3500
0.2200
90.64
Joy Liquid Dish Soap
438.98
441.20
439.06
2.2200
0.0800
96.40
96.33
480.75
482.84
480.78
2.0900
0.0300
98.56
428.11
430.39
428.16
2.2800
0.0500
97.81
459.92
461.95
460.07
2.0300
0.1500
92.61
433.87
436.06
433.88
2.1900
0.0100
99.54
466.05
468.41
466.12
2.3600
0.0700
97.03
417.47
419.68
417.60
2.2100
0.1300
94.12
465.12
466.49
465.16
1.3700
0.0400
97.08
401.54
403.66
401.68
2.1200
0.1400
93.40
397.48
399.54
397.58
2.0600
0.1000
95.15
453.77
456.35
453.91
2.5800
0.1400
94.57
Mrs. Meyers Dish Soap
429.90
431.93
429.98
2.0300
0.0800
96.06
95.77
468.17
470.40
468.28
2.2300
0.1100
95.07
436.58
438.32
436.67
1.7400
0.0900
94.83
464.19
466.51
464.25
2.3200
0.0600
97.41
468.93
471.12
469.02
2.1900
0.0900
95.89
425.55
427.28
425.59
1.7300
0.0400
97.69
421.92
423.92
422.07
2.0000
0.1500
92.50
410.67
412.91
410.70
2.2400
0.0300
98.66
446.79
449.04
446.97
2.2500
0.1800
92.00
449.85
452.22
450.03
2.3700
0.1800
92.41
469.38
471.76
469.50
2.3800
0.1200
94.96
Success Rating:
Results successful using TACT (time, agitation, concentration, and temperature, as well as rinsing and drying) and/or other cleaning chemistries examined.
Conclusion:
All products were considered effective at removing 4009 Soil B from ceramic plates using a dish brush.
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