SN EN 50289-4-9:2001现行
Communication Cables - Specifications For Test Methods - Part 4-9: Environmental Test Methods; Pneumatic Resistance
出版：Swiss Standards
专家解读视频
Gives the method of test to determine the pneumatic resistance used in analogue and digital communication systems. This test only applies to cables which are protected by gas pressurisation.
DIN EN 50289-4-9 (2002-05) - Identical
BS EN 50289-4-9:2001 - Identical
NEN EN 50289-4-9:2001 - Identical
UNE EN 50289-4-9:2002 - Identical
SS EN 50289-4-9 Ed. 1 (2002) - Identical
I.S. EN 50289-4-9:2001 - Identical
NF EN 50289-4-9:2002 - Identical
