SN EN ISO/IEC 15421 : 2001

Foreword
Introduction
1 Scope
2 Conformance
3 Normative references
4 Terms and definitions
5 Symbols and abbreviated terms
6 Physical requirements
  6.1 Material
       6.1.1 Dimensional stability
       6.1.2 Archival properties
  6.2 Physical requirements controlled by the
       manufacturing process
       6.2.1 Target bar width
       6.2.2 Bar width adjustment
  6.3 Tolerances
       6.3.1 Tolerance A - all symbologies
       6.3.2 Tolerance B - two width symbologies
       6.3.3 Tolerance C - (n,k) symbologies
       6.3.4 Tolerance D - all symbologies
  6.4 Bar edge characteristics
       6.4.1 Bar edge conformance
       6.4.2 Bar edge gradient
  6.5 Defects
  6.6 Quiet zones
  6.7 Corner marks
  6.8 Optical densities
       6.8.1 Minimum density (Dmin)
       6.8.2 Maximum density (Dmax)
  6.9 Orientation
  6.10 Polarity
  6.11 Encodation
  6.12 Human readable interpretation
7 Test methods
  7.1 Bar and space width measurement
       7.1.1 Conditions for dimensional measurements
       7.1.2 Calculation of the achieved bar width
             adjustment
  7.2 Test report and traceability
Annex A (informative) Optical density profiles

Defines the physical and related attributes of a bar code master and quality to assist in its use. Covers all forms of bar code master, irrespective of the mode or origination of the initial image, intended for reproduction by conventional printing processes.