2008GB/T 15972.50-2008 Specifications for optical fibre test methods.Part 50:Measurement methods and test procedures for environmental characteristics.Damp heat(steady state)
1998GB/T 15972.5-1998 Generic specification for optical fibres. Part 5: Measuring methods for environmental characteristics
1987GB/T 8404.1-1987 Test methods for environmental properties of optical fibres--General
GB/T 8404.1-1987 Test methods for environmental properties of optical fibres--General was changed to GB/T 15972.5-1998 Generic specification for optical fibres. Part 5: Measuring methods for environmental characteristics.