IEC 62316, which is a Technical Report, aims to provide guidelines for the interpretation of backscattering traces, as obtained by traditional optical time domain reflectometers (OTDRs) not including polarization OTDRs - for single-mode fibres. Also, backscattered power effects are discussed in case of unidirectional trace. Full description of the test measurement procedure can be found in Annex C of IEC 60793-1-40:2001.
IEC TR 62316:2017 history
2017IEC TR 62316:2017 Guidance for the interpretation of OTDR backscattering traces for single-mode fibres
2007IEC TR 62316:2007 Guidance for the interpretation of OTDR backscattering traces
2003IEC TR 62316:2003 Guidance for the interpretation of ODTR backscattering traces