This part of IEC 60793 provides values of the tensile strength of optical fibre samples and
establishes uniform requirements for the mechanical characteristic – tensile strength. The
method tests individual lengths of uncabled and unbundled glass optical fibre. Sections of
fibre are broken with controlled increasing stress or strain that is uniform over the entire fibre
length and cross section. The stress or strain is increased at a nominally constant rate until
breakage occurs.
The distribution of the tensile strength values of a given fibre strongly depends on the sample
length, loading velocity and environmental conditions. The test can be used for inspection
where statistical data on fibre strength is required. Results are reported by means of
statistical quality control distribution. Normally the test is carried out after temperature and
humidity conditioning of the sample. However, in some cases, it may be sufficient to measure
the values at ambient temperature and humidity conditions
IEC 60793-1-31:2010 history
2019IEC 60793-1-31:2019 Optical fibres - Part 1-31: Measurement methods and test procedures - Tensile strength
2010IEC 60793-1-31:2010 Optical fibres - Part 1-31: Measurement methods and test procedures - Tensile strength
2001IEC 60793-1-31:2001 Optical fibres - Part 1-31: Measurement methods and test procedures; Tensile strength