IEC 60793-1-2:1995

FOREWORD
Clause
1 Scope and object
2 Normative reference
3 Dimensional tests
4 Reference surface
5 Concentricity error
6 Tolerances
7 Operational definitions
8 Method IEC 793-1-A1 - Refractive index profile
    8.1 Method IEC 60793-1-A1A - Refractive index
         profile - Refracted near-field method
    8.2 Method IEC 60793-1-A1B - Refractive index
         profile, transverse interference method
9 Method IEC 793-1-A2 - End face geometry of optical
    fibre determined from the near-field light
    distribution
    9.1 Object
    9.2 Geometry parameters
    9.3 Apparatus
    9.4 Test sample
    9.5 Procedure
    9.6 Results
10 Method IEC 793-1-A3 - Side view light distribution
    for primary coating
    10.1 Object
    10.2 Sample preparation
    10.3 Apparatus
    10.4 Procedure
11 Method IEC 793-1-A4 - Mechanical diameter measurement
    11.1 Object
    11.2 Scope
    11.3 Test apparatus
12 Method IEC 793-1-A5 - Mechanical length measurement
13 Method IEC 793-1-A6 - Length measurement by delay
    measuring of transmitted pulse and/or reflected pulse
    13.1 Object
    13.2 Principle
    13.3 Sample
    13.4 Apparatus
    13.5 Procedure
    13.6 Results
    13.7 Documentation
14 Method IEC 793-1-A7 - Fibre elongation measurement
    method
    14.1 Object
    14.2 Description
    14.3 Apparatus
    14.4 Procedure
    14.5 Results
15 Method IEC 60793-1-A8 - Length measurement of an
    optical fibre by the phase-shift method
    15.1 Object
    15.2 Scope
    15.3 Apparatus
    15.4 Sampling and specimens
    15.5 Procedure
    15.6 Calculation and interpretation of results
    15.7 Documentation
Annex A (informative) Determination of group index
Figures

Gives the measureing methods applicable to environmental tests of optical fibres. The methods are to be used for inspection of optical fibres for commercial puposes. They establish uniform requirements for geometrical characteristics of optical fibres.