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Trial Number 2

Trial Purpose:

To evaluate three supplied cleaning products for glass soil removal from glass and chrome surfaces.

Date Run:

10/17/2016

Experiment Procedure:

Three cleaners (Catholyte NaOH, Anolyte Hypochlorous, and Windex) were received “Ready to Use” (RTU). Pre-weighed coupons (three glass, three chrome) were coated with one half of a gram of glass soil, at room temperature, using a hand held swab. The contaminated coupons were air dried for 24 hours at room temperature and weighed again to determine the amount of soil added.

Three coupons of each substrate were placed in the SLW unit and a KC Wypal reinforced paper towel was attached to the cleaning sled and treated with two sprays of cleaning solution. Each coupon was sprayed twice with the same cleaning solution. The cleaning unit was run for 5 cycles (equivalent of 10 seconds of cleaning). Coupons were dried and final weights were recorded. Efficiencies were calculated and recorded.

Trial Results:

Each product was evaluated for visual and gravimetric removal of glass soil. The three supplied products removed over 89% of the glass soil on each substrate using the manual wipe unit. After cleaning, glass substrates contained streaking and filming from the glass soil. The Catholyte solution had the best ranking for both streaking and filming when compared to Windex.

Substrate        
Cleaner Initial wt Final wt % Removed % Average
Glass        
Catholyte        
  0.0509 0.0027 94.7 95.33
  0.0522 0.0031 94.06  
  0.0471 0.0013 97.24  
Anolyte        
  0.0511 0.0025 95.11 92.89
  0.0578 0.0022 96.19  
  0.0578 0.0073 87.37  
Windex        
  0.05 0.0041 91.8 91.81
  0.0562 0.0053 90.57  
  0.0518 0.0036 93.05  
Chrome        
Catholyte        
  0.0567 0.0062 89.07 89.75
  0.0541 0.0045 91.68  
  0.0531 0.0061 88.51  
Anolyte        
  0.0509 0.0036 92.93 92.92
  0.0606 0.0048 92.08  
  0.0591 0.0037 93.74  
Windex 0.0626 0.0038 93.93 94.74
  0.0568 0.0027 95.25  
  0.0747 0.0037 95.05  
Cleaner Streaking       Film      
  Tester 1 Tester 2 Tester 3 Ave Tester 1 Tester 2 Tester 3 Ave
Glass                
Catholyte 3 3 2.5 2.17 1.5 1 3 1.89
  2.5 3 2 3 2 3    
  1.5 1 1 1.5 1 1    
Anolyte 4 2 3.5 2.28 3.5 2 2.5 2.72
  3 2 1.5 2 1 2    
  1.5 1 2 4.5 3 4    
Windex 4.5 4 4 4 3.5 2 3.5 3.28
  6 3 4 5 4 4    
  4 3 3.5 3 2 2.5    

Success Rating:

Results successful using TACT (time, agitation, concentration, and temperature, as well as rinsing and drying) and/or other cleaning chemistries examined.

Conclusion:

Catholyte NaOH, Anolyte Hypochlorous, and Windex efficiently removed Glass Soil on glass and chrome using the Manual SLW Unit. The Catholyte solution had the least amount of streaking and filming.

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