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IEC 46A/431A/NP
Comments received on 46A/431/NP (Coaxial cables for use in cabled distribution networks - Part 2-18: Test for relative propagation velocity (velocity ratio))
IEC 46A/986/CDV
IEC 61196-1-108: Coaxial communication cables - Part 1-108: Electrical test methods - Test for characteristic impedance, phase and group delay, electrical length and propagation velocity
IEC 20C/71/NP
Proposal of the British Committee: Introduction of a requirement, for tests to IEC 60332-1, -2 and -3, to minimise the risk of flame propagation from debris falling from burning cables
NA 001-02-03-19 UA
Sound propagation outdoors
NA 001-02-03 AA
Sound propagation, noise control and noise reduction
VDI 3745 Blatt 2
Prediction of sound propagation
prEN 14579 rev
Natural stone test methods - Determination of sound speed propagation
DIN EN 14579 rev
Natural stone test methods - Determination of sound speed propagation
VDI 4101 Blatt 2
Sound propagation outdoors in consideration of meteorological and topographical conditions - Blatt 2: Wind turbines
VDI 4101 Blatt 1
Sound propagation outdoors in consideration of meteorological and topographical conditions - Part 1: Phenomena and Procedures
