GB/T 9771.3-2020 Single-mode optical fibres for telecommunication—Part 3: Characteristics of an extended wavelength band dispersion unshifted single-mode optical fibre
2020GB/T 9771.3-2020 Single-mode optical fibres for telecommunication—Part 3: Characteristics of an extended wavelength band dispersion unshifted single-mode optical fibre
2008GB/T 9771.3-2008 Single-mode optical fibres for telecommunication.Part 3:Characteristics of an extended wavelength band dispersion unshifted single-mode optical fibre
2000GB/T 9771.3-2000 The series of single-mode optical fibres for telecommunication Part 3:Characteristics of an extended wavelength band dispersion unshifted single-mode optical fibre