ISO Standards ISO 13472-1-2022 pdf free download – Acoustics — Measurement of sound absorption properties of road surfaces in situ — Part 1: Extended surface method ISO 13472-1-2022 pdf free download - Acoustics — Measurement of sound absorption properties of road surfaces in situ — Part 1: Extended surface method. 5Test system 5.1Components of the test system The test equipment shall comprise an... 02-08 Download Now