BS EN 60793-1-20:2014

INTRODUCTION
1 Scope
2 Normative references
3 Terms, definitions and symbols
4 Overview of method
5 Reference test method
6 Apparatus
7 Sampling and specimens
8 Procedure
9 Calculations
10 Results
11 Specification information
Annex A (normative) - Requirements specific to
        Method A - Refracted near-field
Annex B (normative) - Requirements specific to
        Method B - Transmitted near-field
Annex C (normative) - Edge detection and edge
        table construction
Annex D (normative) - Edge table ellipse fitting and
        filtering
Annex E (informative) - Fitting category A1 core
        near-field data to a power law model
Annex F (informative) - Mapping class A core diameter
        measurements
Bibliography
Annex ZA (normative) - Normative references to
         international publications with their
         corresponding European publications

Defines uniform requirements for measuring the geometrical characteristics of uncoated optical fibres.

This part of IEC 60793 establishes uniform requirements for measuring the geometrical characteristics of uncoated optical fibres.

The geometry of uncoated optical fibres directly affect splicing, connectorization and cabling and so are fundamental parameters requiring careful specification, quality control, and thus measurement.