DIN EN 13619:2003-04

Foreword
1 Scope
2 Terms and definitions
3 Symbols and abbreviations
4 Guidelines
  4.1 Address zone background attributes
      4.1.1 Background colour
      4.1.2 Background noise
  4.2 Address block attributes
      4.2.1 Address block size
      4.2.2 Clear zone
      4.2.3 Address block skew
      4.2.4 Line spacing
      4.2.5 Bar codes
      4.2.6 Characters per line
  4.3 Character attributes
      4.3.1 Fonts
      4.3.2 Stroke thickness
      4.3.3 Type size
      4.3.4 Character spacing
      4.3.5 Word spacing
      4.3.6 Character sets
      4.3.7 Colour
      4.3.8 Underlining
      4.3.9 Print quality
      4.3.10 Print contrast ratio (PCR) of address
             characters vs. background
5 Salience of attributes
  5.1 General
  5.2 Address zone background attributes
  5.3 Address block attributes
  5.4 Character attributes
Bibliography

Gives optical characteristics for processing letters and guidelines on the values of these attributes that will assure a high level of address readability.