Information
IEC 61757-1-4『Fibre optic sensors - Part 1-4: Strain measurement - Distributed sensing based on Rayleigh scattering』 was published（2025-12-26）.
Feb 11th, 2026
New standards for distributed strain sensing based on Rayleigh scattering
(IEC 61757-1-4『Fibre optic sensors - Part 1-4: Strain measurement - Distributed
sensing based on Rayleigh scattering』) was published in 2025-12-26.
This standard was proposed by Japan & subsequently issued after deliberation.
Related Links : https://webstore.iec.ch/en/publication/96214