FOREWORD
1 Scope and object
2 Normative references
3 Apparatus
3.1 Light source
3.2 Input optics
3.3 Input positioner
3.4 Cladding mode stripper
3.5 Output positioner
3.6 Output optics
3.7 Computer
4 Samples and specimens
5 Procedure
6 Calculations of interpretation of results
7 Documentation
7.1 Information to be provided with each measurement
7.2 Information available upon request
Annex A (normative) Continuous wave dual-frequency method
Annex B (normative) Pulsed single-frequency method (PM)
Annex C (informative) List of acronyms and symbols
Annex D (informative) Guidance on the selection of fibre
test length, power and difference
in optical wavelength when using
method A
Bibliography