2020GB/T 9771.5-2020 Single-mode optical fibres for telecommunication—Part 5: Characteristics of a non-zero dispersion shifted single-mode optical fibre
2008GB/T 9771.5-2008 Single-mode optical fibres for telecommunication.Part 5:Charaterisics of a non-zero dispersion shifted single-mode optical fibre
2000GB/T 9771.5-2000 The series of single-mode optical fibres for telecommunication Part 5:Characteristics of a non-zero dispersion shifted single-mode optical fibre