core material：polymety l - methacrylate resin
cladding material：fluorinated polymer
core refractive index：1.49
refractive index profile：step index
numerical aperture：0.5
core diameter：min.217mm；typ.240 mm；max.263mm
cladding diameter：min.227mm；typ.250 mm；max.273 mm
2．jacket
material：polyethylene
color：black
diameter： min.0.95mm；typ. 1.00mm；max.1.05mm
3．approximate weight：0.7 g / m
4．maximum rating
storage temperature：no physical deterioration [ in a dry atmosphere ] -55~+70℃
operation temperature：[ in a dry atmosphere ] -55~+70℃
operation temperature：[ under 95 %rh：condition ] +60℃
5．optical properties
transmission loss：[ 650 nm collimated light ] [ 25℃ 50%rh ] 400db / km
transmission loss：[ 650 nm collimated light ] [ operation temperature ] 420db / km
6．mechanical characteristics
minimum bend radius：loss increment =< 0.5 db [ a quarter bend ] 5mm
repeated bending endurance：loss increment =< 1 db [ in conformity to the jis c 6861 ]
tensile strength：[tensile force at 5% elongation; [ in conformity to the jis c 6861 ] 4n
twisting endurance：loss increment =< 1 db [ sample length : 1 m tensile force : 4.9 n ]
impact endurance：loss increment =< 1 db [ in conformity to the jis c 6861 ]