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Trial Number 2

Trial Purpose:

To evaluate the efficiency one cleaner on GS 34 Soil-1 and Soil-2 from stainless steel coupons using immersion technique.

Date Run:

06/12/2015

Experiment Procedure:

Twenty-two sets of stainless steel coupons were weighed; each set consist of three coupons. Eleven sets of coupons were soiled with GS 34 Soil-1 and another eleven set was soiled with HS 34 Soil-2. Both soils were applied at the loading of ~100mg. The soiled coupons were oven dried for 30 minutes at 40 °C for GS 34 Soil-1 and 105°C for GS 34 Soil-2. Dirty weights were recorded for all of coupons after 15 minutes of cooling. Each set of cooled coupons were then immersed into 500 mL of its respective cleaning agent for 30 minutes standing up and soiled side facing away from one another inside the beaker. After immersion, coupons were rinsed into 500 mL water for 5 minutes. After rinsing, coupons were left to bake for an additional 30 minutes at 105 oC. It was left out to cool for another additional 15 minutes then weighed for final weights. After sitting out overnight, the cleaned coupons were weighed again for a second final weight. Thereafter the cleaned coupons were applied with a pressured towel manually onto each set of three coupons then weighted again for a third final reading to get rid of excess cleaning agents.

Some of the products were tested at a temperature of 105 C.

Soil 1: Maintenance soil = 10 grams of carbon black, 10 grams iron oxide, 100 ml WD-40, 100 ml hydraulic oil, and 100 ml gear oil.
Soil 2: Production soil = 200 ml Quench Oil and 200 ml cutting oil

Chemistries evaluated: BioCircle_L; BioCircle_Ultra; BioCircle_Aero; BioCircle_CB 100; BioCircle_CB 100_ALU; BioCircle_UNO SF; Simple Green; Chem Free SW4; Aquantene 330; LPS T91; Keteca

Trial Results:

Soil_1; Immersion_Stainless Steel        
Cleaners Initial wt Final wt % Removed % Ave Removed
BioCircle_L        
  0.0987 0.0112 88.65  
  0.092 0.0053 94.24  
  0.0976 0.0052 94.67 92.52
BioCircle_Ultra        
  0.1037 0.0424 59.11  
  0.1061 0.0421 60.32  
  0.0932 0.0339 63.63 61.02
BioCircle_Aero        
  0.1009 0.0128 87.31  
  0.1012 0.0077 92.39  
  0.1109 0.0144 87.02 88.91
BioCircle_CB 100        
  0.1174 0.017 85.52  
  0.1172 0.0345 70.56  
  0.0961 0.0197 79.5 78.53
BioCircle_CB 100_ALU        
  0.1002 0.0416 58.48  
  0.1004 0.0396 60.56  
  0.1151 0.0096 91.66 70.23
BioCircle_UNO SF        
  0.1145 0.0525 54.15  
  0.1063 0.0429 59.64  
  0.1013 0.0298 70.58 61.46
Simple Green        
  0.0989 0.028 71.69  
  0.0921 0.043 53.31  
  0.1053 0.047 55.37 60.12
Chem Free SW4        
  0.0939 0.0283 69.86  
  0.1011 0.0379 62.51  
  0.1008 0.0263 73.91 68.76
Aquantene 330        
  0.0962 0.0392 37.42  
  0.0919 0.0464 24.37  
  0.1043 0.0419 41.13 34.31
LPS T91        
  0.0911 0.0427 53.13  
  0.0921 0.0465 49.51  
  0.091 0.0208 77.14 59.93
Kreussler        
  0.1042 0.0007 99.33  
  0.0995 0.0045 95.48  
  0.101 0.0019 98.12 97.64
         
Soil_2; Immersion_Stainless Steel        
Cleaners Initial wt Final wt % Removed % Ave Removed
BioCircle_L        
  0.0876 0.018 79.45  
  0.0964 0.0103 89.32  
  0.1037 0.0121 88.33 85.7
BioCircle_Ultra        
  0.1043 0.0083 92.04  
  0.1005 0.0038 96.22  
  0.0979 0.007 92.85 93.7
BioCircle_Aero        
  0.0847 0.0056 93.39  
  0.0914 0.0122 86.65  
  0.0868 0.0075 91.36 90.47
BioCircle_CB 100        
  0.0993 0.0033 96.68  
  0.0848 0.0027 96.82  
  0.0808 0.0032 96.04 96.51
BioCircle_CB 100_ALU        
  0.0718 0.0028 96.1  
  0.085 0.0033 96.12  
  0.1041 0.0015 98.56 96.93
BioCircle_UNO SF        
  0.1305 0.0326 75.02  
  0.1021 0.002 98.04  
  0.0864 0.0001 99.88 90.98
Simple Green        
  0.1056 0.0002 99.81  
  0.1056 0.0011 98.96  
  0.0897 0.0001 99.89 99.55
Chem Free SW4        
  0.0985 0.0004 99.59  
  0.0923 0.0001 99.89  
  0.1003 0.0002 99.8 99.76
Aquantene 330        
  0.0699 0.0006 98.28  
  0.0817 0.003 89.11  
  0.0956 0.0016 97.91 95.1
LPS T91        
  0.1041 0.0002 99.81  
  0.0944 0.0008 99.15  
  0.085 0.0003 99.65 99.54
Kreussler        
  0.0707 0.0003 99.58  
  0.0663 0.0002 99.7  
  0.0893 0.0003 99.66 99.65

Success Rating:

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

Conclusion:

An effective cleaner has an efficiency rating of 80% and higher. The most effective cleaning agent at removing GS34 Soil 1 was Kreussler with an efficiency rating of 97.64%. Aquantene 330 was the worse cleaning agent at removing GS34 Soil 1 with an efficiency of 34.31%. In comparison between the Bio Circle cleaning agents, Bio Circle L was the best with an efficiency of 92.52%. In addition to that the worse Bio Circle cleaning agent is between Bio Circle Ultra and Bio Circle UNO SF with a respective rating of 61.02% and 61.46%. Overall the most effective cleaning agent would be as follows: Kreussler, Bio Circle L and Bio Circle Aero.
The most effective cleaning agent at removing GS34 Soil 2 is Chem Free SW4 with an efficiency of 99.76%. However Kreussler, LPS T91 and Simple Green are nearly on par with the removal efficiency of Chem Free SW4. Their respective relative difference from Chem Free SW4 in efficiency is 0.11%, 0.22% and 0.21%. The worse cleaning agent at removing GS34 Soil 2 is Bio Circle L with a removal efficiency of 85.70%. In comparison between the Bio Circle cleaning agents, Bio Circle CB 100 and Bio Circle CB 100 CLU worked the best. In addition to that Bio Circle L is the worse. Overall the most effective cleaning agent is as follows: Chem Free SW4, Kreussler and Simple Green.
The best cleaning agent at removing GS34 Soil is Kreussler.

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