ITU-T J.24
Modulation of signals carried by sound-programme circuits by interfering signals from power supply sources
现行
发布日期 :
2026-02-01
实施日期 :
DIN 3509
Valves for potable water supply in buildings - Draw-off taps (PN 10) - Requirements and tests
现行
发布日期 :
2001-06-01
实施日期 :
DIN EN 54-4/A1
Fire detection and fire alarm systems - Part 4: Power supply equipment; Amendment A1
现行
发布日期 :
2001-03-01
实施日期 :