| Reference | Designation/Description | Accredited assay |
Reference standards |
Product/ Material |
Comments |
|---|---|---|---|---|---|
| ACI.01 | Environmental noise: Measurement of environmental noise. Annoyance response | ISO 1996-1:2016; ISO 1996-2:2017; Procedimento Interno ACI.01.IE.01 (version no. 8 of May 2020) or NP ISO 1996-1:2011; NP ISO 1996-2:2011; Annex I of Portuguese Decree-Law No. 9/2007; Internal Procedure ACI.01.IE.02 (version no. 1 of May 2020) | Environmental noise | ||
| ACI.09 | Acoustics - In situ determination of insertion loss of outdoor noise barriers | Barreiras acústicas destinadas a tráfego rodoviário | |||
| ACL.01 | Laboratory test: Measurement of airborne sound reduction index for Rw. Range: Rw ≤ 72 dB | ISO 10140-1:2016 (except annexes J and K); ISO 10140-2: 2010; ISO 10140-4:2010; ISO 717-1:2013; EN 1793-2:2018 (only applicable to noise barriers intended for road traffic) | Building elements | Range: Rw ≤ 72 dB | |
| ACL.02 | Laboratory test: Measurement of sound absorption in a reverberation room | NP EN ISO 354:2007 | Building elements | ||
| ACL.15 | Laboratory test: Acoustic intensimetry | ||||
| PRD.33 | Determination of resistance to the impact of noise barriers | EN 1794-2:2011 (Anex B) | Acoustic barriers |