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By certification 
Geological Sizes
Mode field Diameter (1310nm): (8.6∽9.5) ±0.5µm
Cladding Layer Diameter: 125 ±1.0µm
Cladding Layer Non-circularity <2%
Core/Cladding Layer Concentricity Tolerance <0.8µm
Coating Layer Diameter: 245 ±10µm (uncolored)
Cladding/Coating Layer Concentricity Tolerance <12.5µm
Bending Radius: R>4m
Mechanical Performance
Selection Test: 1% (0.7GPa,8.6N,100KPSI)
Dynamic Fatigue Coefficient: nd >20
Coating Splitting Force:1.3~8.9N
Coating Appearance: No gap and air bubble should be found within double coating layers.
Environment & Performance
Temperature Range:-60℃~+85℃
Temperature & Attenuation Relation:
The additional attenuation should be no more than 0.05dB/ km at 1310nm, 1550nm under temperature of -60~+85
Temperature and Humidity Cycle:
The additional attenuation allowed of tested fiber at wavele-ngth 1310nm & 1550nm should be no more than 0.05dB/km after it is immersed in water under temperature of 23 ±2℃ for 30 days.
The additional attenuation allowed of tested fiber at 1310nm & 1550nm should be no more than 0.05dB/km after it is laid in the environment with temperature of 85 ±2℃ and relative humidity no less than 85% for 30 days.
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