title: interpretation of sizes of fields (bitmap) ISO8583
body: <p>What should be the correct interpretation for the sizes of each bit represents :<br></p>
  
  <pre>
  Bitmap  attribue  length in bytes
  1       b 1       16 (every two, representing a binary byte)
  52      b 64      ???
  64      b 64      ???
  65      b 1       ??? (will be 16 too ?)
  96      b 64      ???
  128     b 64      ???
  </pre>
  
  <p>Need to implement the treatment for this information.<br></p>
  
  <p>Tanks.</p>