1 Scope
2 Normative references
3 Measurement methods for the inside diameter of fibre
      optic connector ferrules
      3.1 Purpose
      3.2 General description
      3.3 Inspection method: pin gauging technique
             3.3.1 Gauging of ferrules
             3.3.2 Inspection conditions
             3.3.3 Inspection procedure
      3.4 Detailed to be specified
4 Measurement methods for the outside diameter of fibre
      optic connector ferrules
      4.1 Purpose
      4.2 General description
      4.3 Inspection methods
             4.3.1 Method 1: ring gauging techniques
             4.3.2 Method 2: laser and contact
                                 micrometer measurement
                                 techniques
             4.3.3 Method 3: displacement measurement
                                 technique
      4.4 Detailed to be specified
             4.4.1 Method 1
             4.4.2 Method 2
             4.4.3 Method 3
Figure 1 - Pin gauging tolerance field of ferrule hole
Figure 2 - Ring gauging tolerance field of ferrule outside
           diameter