GB/T 15972.44-2017 Specifications for optical fibre test methods—Part 44: Measurement methods and test procedures for transmission and optical characteristics—Cut-off wavelength (English Version)
2017GB/T 15972.44-2017 Specifications for optical fibre test methods—Part 44: Measurement methods and test procedures for transmission and optical characteristics—Cut-off wavelength
2008GB/T 15972.40-2008 Specifications for optical fibre test methods.Part 40:Measurement methods and test procedures for transmission and optical characteristics.Attenuation
1998GB/T 15972.4-1998 Generic specification for optical fibres. Part 4: Measuring methods for transmission and optical characteristics