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10/22/2020 176009.1 All-Dielectric Self-Supporting Fiber Optic Cable <br /> 6. Buffer tubes <br /> 6.1 Buffer Tube Color Coding <br /> Each buffer tube shall be identified by a color code as follows: <br /> Tube No. Color <br /> 1 Blue <br /> 2 Orange <br /> 3 Green <br /> 4 Brown <br /> 5 Slate <br /> 6 White <br /> 6.2 Filling Compound • <br /> Buffer tubes shall be filled with a compound to prevent water intrusion and migration. This compound shall be <br /> chemically compatible with all cable components, nonhygroscopic,nontoxic, dermatologically safe and <br /> electrically nonconductive. <br /> 7. Filler rods <br /> Filler rods shall be made of an unpigmented solid high density polyethylene (HDPE)rod with the same outer <br /> diameter as the buffer tubes. <br /> 8. Optical Fibers <br /> 8.1 Fiber Type <br /> Fiber type shall be dispersion-unshifted single-mode low-water peak optical fiber,EIA Class IVa. <br /> 8.2 Fiber Color Coding <br /> Each optical fiber shall be identified by a color coding ink as follows: <br /> Fiber No. Color <br /> 1 Blue <br /> https://standards.snopud.com/Content/Material/C-Conductors/176009.1.htm 2/6 <br />