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Trial Number 489

Trial Purpose:

DIY test for all purpose cleaning with water rinsing

Date Run:

05/06/2009

Experiment Procedure:

Basic cleaning performance testing was conducted using ASTM G122 as the bases for cleaning. 

A “Do-it-yourself" home formulation was evaluated for performance on several substrates and a soil for all purpose cleaning. Rinsing was added to improve residue removal.

Cleaning: Spray cleaner on the coupons
30 seconds of manual wiping using a Garnder Straight-line washability unit at room temperature. After cleaning, coupons were sprayed with water and wiped dry. Parts were analyzed using visual and gravimetric techniques.
Contaminant SSL Soil 3 – Hucker’s Soil
Substrate 2"x 4"x 0.06" for ceramic, painted steel, plastic and stainless steel.

All Purpose Formulations
Home Formulation 7 - 2 tbsp borax, ¼ cup lemon juice, 2 cups hot water - combine in spray bottle

Trial Results:

Cleaner Substrate Initial Wt. Final Wt. % Removed
All Purpose DIY Formulation Ceramic - 20 cycles 0.2026 0.0426 78.97
0.2532 0.0498 80.33
0.1901 0.0513 73.01
All Purpose DIY Formulation Painted steel - 60 cycles 0.1851 0.0037 98
0.2104 0.0096 95.44
0.2569 0.0072 97.2
All Purpose DIY Formulation Plastic - 20 cycles 0.098 0.0063 93.57
0.1022 0.0021 97.95
0.1142 0.0025 97.81
All Purpose DIY Formulation Stainless steel - 20 cycles 0.1235 0.0122 90.12
0.1104 0.0029 97.37
0.1787 0.0063 96.47
All Purpose DIY Formulation Ceramic - rinse 0.2026 0.0279 86.23
0.2532 0.0412 83.73
0.1901 0.028 85.27
All Purpose DIY Formulation Painted steel - rinse 0.1851 -0.0043 102.32
0.2104 0.0039 98.15
0.2569 -0.0034 101.32

Success Rating:

Preliminary compatibility tests on substrate coupons encouraging for at least one cleaning chemistry. More in-depth laboratory testing necessary.

Conclusion:

The DIY formulation #7 was previously ineffective on the Hucker’s soil when used without a rinse. Each of the substrates cleaned and rinsed during this trial were cleaned above 85% with only one surface needing longer cleaning time. The plastic surface required 60 cycles of cleaning as compared to 20 cycles for the other surfaces. In addition, the plastic coupon was improved with a longer rinse process. The ceramic surfaces also needed additional rinsing time to achieve the 85% effective level.

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