Sheet1

  Name  Cust. #1   Date  11/2/01    
  Address

 Cust #1 Address

 Temp  74 Humid.  67%
             
  Weather Conditions  Clear, Sunny, Warm          
               
               
The Traction Index is the ratio of the corrected test surface static coefficient of friction (SCOF) to the minimum SCOF.
See VOSI Ref. V41.23E, "Slip & Trip Resistant Sidewalks and Swimming Pool Decks".
               
               
  material      
  Leather (dry) EVA (dry) EVA (wet)  Silicone (wet)      
Test Surface SCOF (Corrected) 0.62 0.93 0.79 0.70      
Minimum Required SCOF 0.45 0.50 0.35 0.35      
               
               
  Traction Index      
               
  material      
area tested Leather (dry) EVA (dry) EVA (wet)  Silicone (wet)      
Broom finished concrete, pool deck (white) 1.38 1.86 2.26 2.00      

Sheet 2

 Slip Resistant Test Per VOSI V41.23E
 "Standard for Slip & Trip Resistant Sidewalks & Pool Decks"
Name : Cust. #1                
Address : Cust #1 Address        
Weather Conditions : Sunny, Clear, Warm  Temp(F) : 74 Rel. Humidity : 67%
                         
Gauge Corr. Factor = 5.00/ 5.07 = 0.99_
Leather/Polypropylene Panel No. _172_
Std. SCOF Dry _0.30
1 2 3 4 5 6 7 8 9 AVG. Plus Minus S.D.
0.34 0.30 0.31 0.32 0.35 0.34 0.33 0.32   0.33 0.02 0.03 0.018
Leather Correction Factor: _0.91
Monarch EVA/"Florida" Ceramic Tile No. _60__
Std. SCOF Dry _0.51                     Std. SCOF Wet _0.34
          DRY              
1 2 3 4 5 6 7 8 9 AVG. Plus Minus S.D.
0.44 0.34 0.36 0.40 0.39 0.40 0.44 0.41   0.40 0.04 0.06 0.035
                         
          WET              
1 2 3 4 5 6 7 8 9 AVG. Plus Minus S.D.
0.30 0.31 0.30 0.30 0.29 0.30 0.26 0.27   0.29 0.02 0.03 0.018
                         
Rubber Correction Factor:    DRY _1.28_                        WET _1.17_
Silicone Rubber/"Florida" Ceramic Tile No. _60__
          WET              
1 2 3 4 5 6 7 8 9 AVG. Plus Minus S.D.
0.36 0.39 0.43 0.44 0.44 0.39 0.36 0.47   0.41 0.06 0.05 0.039
                         
POOL DECK SCOF PHOTO (with scale)
Leather / Broom finished concrete, pool deck (white)
1 2 3 4 5 6 7 8 9 AVG. Plus Minus S.D.
0.70 0.76 0.63 0.69 0.67 0.68 0.68 0.80   0.70 0.10 0.07 0.060
                         
Corrected SCOF _0.62                        Minimum Required SCOF 0.45
                         
Dry Monarch EVA / Broom finished concrete, pool deck (white)
1 2 3 4 5 6 7 8 9 AVG. Plus Minus S.D.
0.76 0.71 0.76 0.74 0.64 0.77 0.69 0.79   0.73 0.06 0.09 0.053
                         
Corrected SCOF _0.93                        Minimum Required SCOF 0.50
                         
Wet Monarch EVA / Broom finished concrete, pool deck (white)
1 2 3 4 5 6 7 8 9 AVG. Plus Minus S.D.
0.72 0.72 0.76 0.59 0.70 0.70 0.64 0.60   0.68 0.08 0.09 0.060
                         
Corrected SCOF _0.79_                   Minimum Required SCOF 0.35
                         
Wet Silicone Rubber / Broom finished concrete, pool deck (white)
1 2 3 4 5 6 7 8 9 AVG. Plus Minus S.D.
0.73 0.70 0.76 0.65 0.69 0.68 0.74 0.68   0.70 0.06 0.05 0.039
                         
Minimum Required SCOF 0.35

Sheet 3

Calculation Worksheet  
1 Gage Correction factor  
                 
  Readings 5.10 5.10 5.00 , AVG. = 5.07    
    GCF = 5.00 / 5.07 = 0.99    
                 
                 
2 Humidity Correction factors  
                 
  Readings Temperature   74 F      
    Relative Humidity   67 %      
                 
  (Ref. VOSI V41.20-7, "Humidity Correction Factors: Leather & Monarch EVA)  
  HCF (leather) = 1.012          
  HCF (EVA) = 0.993          
                 
                 
3 Standard SCOF of Test Panels  
                 
  Leather/Polypropylene Panel No. 172  
      STD SCOF   0.30 (dry)    
                 
  EVA/"Florida" Ceramic Tile Panel No. 60  
      STD SCOF   0.51 (dry)    
      STD SCOF   0.34 (wet)    
                 
                 
4 Leather/EVA Correction factors  
                 
  LCF (dry) = STD SCOF / AVG SCOF      
    0.30 / 0.33 = 0.91    
                 
  RCF (dry) = STD SCOF / AVG SCOF      
    0.51 / 0.40 = 1.28    
                 
  RCF (wet) = STD SCOF / AVG SCOF      
    0.34 / 0.29 = 1.17    
                 
                 
5 Corrected SCOF Calculations  
                 
  Corrected SCOF leather = GCF LCF HCF(leather) Uncorrected SCOF(leather)    
    0.99 0.91 0.988 0.70 = 0.62
                 
  Corrected SCOF EVA/dry = GCF RCF(dry) HCF(EVA/dry) Uncorrected SCOF(EVA/dry)    
    0.99 1.28 1.007 0.73 = 0.93
                 
  Corrected SCOF EVA/wet = GCF RCF(wet) HCF(EVA/wet) Uncorrected SCOF(EVA/wet)    
    0.99 1.17 1.007 0.68 = 0.79

Updated: 4/15/2002
By webmaster@voicesofsafety.com