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2010EN 61300-2-21:2010 Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 2-21: Tests - Composite temperature/humidity cyclic test
1997EN 61300-2-21:1997 Fibre Optic Interconnecting Devices and Passive Components Basic Test and Measurement Procedures Part 2-21: Tests - Composite Temperature-Humidity Cyclic Test