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TIA-455-39 Revision B, February 8, 1999
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FOTP-39 Optical Fiber Cable Water Wicking Test
Includes all amendments and changes through Reaffirmation Notice , August 2, 2013
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This procedure is generally not intended for use on cables containing water swellable tapes, powders, or yarns. Swellable materials must absorb water in order to swell and build a block to further penetration of water. This test method may be used to look at the water wicking characteristics of such cables, however it must be understood that a certain amount of water absorption is necessary for such cables to pass water penetration requirements.