| S. No. | 
        Concentration    of metal ion (ppm) | 
        IST | 
        FST | 
       
      
        | 1. | 
        -- | 
        175 | 
        300 | 
       
      
        | 2. | 
        1 | 
        180 | 
        300 | 
       
      
        | 3. | 
        5 | 
        180 | 
        300 | 
       
      
        | 4. | 
        10 | 
        170 | 
        300 | 
       
      
        | 5. | 
        100 | 
        170 | 
        310 | 
       
      
        | 6. | 
        1000 | 
        170 | 
        300 | 
       
      
        | 7. | 
        1500 | 
        155 | 
        275 | 
       
      
        | 8. | 
        2000 | 
        135 | 
        265 | 
       
      
        | 9. | 
        3000 | 
        135 | 
        265 | 
       
      
        | 10. | 
        5000 | 
        135 | 
        265 | 
       
     
    
    IST- Initial setting time of cement in min. 
    FST- Final setting time of cement in min. |