This standard specifies procedures for testing the suitability of fiber optics or splice closures for resistance to changes at humidity and temperature that may occur during operation, storage and/or transport. The purpose of this test is to verify the performance of the device after it has been subjected to a hot and humid environment and cooled briefly. In general, the test provides a high temperature to induce potential defects due to softening and expansion, a high humidity to promote moisture absorption and expansion, and a low temperature to accelerate ice formation, embrittlement and compression. This test can choose the severity level of the combination, which is different from other environmental cycle tests, especially the damp heat cycle test specified in IEC 61300-2-46 and GB/T l8310.21-2002/IEC 61300-2-21:1995 The temperature-humidity combined cycle test. The test requires: a) as many cycles as possible; b) as wide a range of temperature cycles as possible; c) as short a cycle as possible.
GB/T 18310.48-2007 Referenced Document
GB/T 18309.1-2001 Fibre optic interconnecting devices and passive components--Basic test and measurement procedures Part 1: General and guidance
GB/T 18311.1-2003 Fibre optic interconnecting devices and passive components-Basic test and measurement procedures-Part 3-1:Examinations and measurements-Visual examination
GB/T 18311.4-2003 Fibre optic interconnecting devices and passive components-Basic test and measurement procedures-Part 3-4:Examinations and measurements-Attenuation
GB/T 18310.48-2007 history
2007GB/T 18310.48-2007 Fibre optic interconnecting devices and passive components Basic test and measurement procedures Part 2-48: Tests- Temperature-humidity cycling