Norma e020

   

                     

     

                              

    

   

    

   

   

               

   

    

   

    

   

    

      

    

    

    

   

            

      

    

   

   

  

 



    ^   ^   ^ 

     

    ^ 

   

    

    

     

    

         ^    ^ 

            

          ^   

   ^  

    ^ 

  

   

   

   

                ^  

   

    

    ^    ^ 

   

    

                     

   

   

    

   

      

   

   

   

           

                          

   

   

    _ ^{ } 

       _{ }  _

    

    _{ } ^

   

   _  _  _

   ^  

   

   

    

   ^   

            

              

    

   

    

   

    

     

   

   

   

                       

             

             

   

               

      

              

   

   

          

     

     

           

       

   

  

 

  

             

     

     _                     

     

       

    

                          

    

    

     _

       

   _    _{ }   _   _{ }   

    _    

                   _  

    

    _{ } 

              

    _{ }        

    _ 

        _{   } 

            

   

    

    

   