The acoustic behaviour of spaces, building elements and equipment are subject to national regulations under the building acoustics requirements code (RRAE) and the general noise regulations (RGR).
| Reference | Designation/Description | Accredited assay |
Reference standards |
Product/ Material |
Comments (Administrator) |
|---|---|---|---|---|---|
| ACI.01 | Measurement of sound pressure levels. Annoyance response | NP ISO 1996-1:2021; NP ISO 1996-2:2021; NP ISO 1996-2:2021/Erratum1:2022; Annex I of Portuguese Decree-Law No. 9/2007; Internal Procedure ACI.01.IE.01 (version no. 10 of October 2022) | Environmental noise | ||
| ACI.02 | Measurement of sound pressure levels. Determination of the average long-term exposure sound level. | NP ISO 1996-1:2021; NP ISO 1996-2:2021; NP ISO 1996-2:2021/Erratum1:2022; Internal Procedure ACI.02.IE.01 (version no. 10 of October 2022) | Environmental noise | ||
| ACI.03 | Building acoustics: Measurement of airborne sound insulation between rooms and determination of the sound insulation index | ISO 16283-1:2014; ISO 16283-1:2014/Amd1:2017; ISO 717-1:2020 | Building elements | With the exceptionof standardized low-frequency sound insulation in rooms with a volume less than 25 m3 | |
| ACI.04 | Building acoustics: Measurement of airborne sound insulation of facades and facade elements and determination of the sound insulation index. Global loudspeaker method | ISO 16283-3:2016; ISO 717-1:2020 | Building elements | With the exception of standardized low-frequency sound insulation in rooms with a volume less than 25 m3 | |
| ACI.05 | Measurement of reverberation time. Interrupted noise method (Engineering Method) | ISO 3382-2:2008; ISO 3382-2:2008/Cor.1:2009 | Building acoustics | ||
| ACI.06 | Building acoustics: Measurement of impact sound insulation of floors and determination of the sound insulation index | ISO 16283-2:2020, ISO 717-2:2020 | Building elements | With the exception of standardized low-frequency sound insulation in rooms with a volume less than 25 m3 | |
| ACI.07 | Building acoustics: Measurement of sound pressure level from service equipment in buildings. Determination of the sound level of particular noise | ISO 16032:2024; Note 3 of National Laboratory for Civil Engineering Document, 16 of March 2023 | Building acoustics | ||
| ACI.08 | Measurement of sound pressure levels. Determination of the equivalent sound level | NP ISO 1996-1:2021; NP ISO 1996-2:2021; NP ISO 1996-2:2021/Erratum1:2022; Internal Procedure ACI.08.IE.01 (version no. 10 of October 2022) | 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 10140-1:2021 (except annexes J and K); ISO 10140-2: 2021; ISO 10140-4:2021; ISO 717-1:2020 | Building elements | EN 1793-2:2018, EN 1793-3:1997 (only applicable to noise barriers intended for road traffic); EN 16272-2:2023, EN 16272-3-1:2023 (only applicable to noise barriers intended for railway) | |
| ACL.02 | Laboratory test: Measurement of sound absorption in a reverberation room | NP EN ISO 354:2007 | Building acoustics | EN ISO 11654:1997 (applicable to flat objects); EN 1793-1:2017, EN 1793-3:1997 (only applicable to noise barriers intended for road traffic); EN 16272-1:2023, EN 16272-3-1:2023 (only applicable to noise barriers intended for railway) | |
| ACL.03 | Laboratory test: Determination of impact sound insulation index, Ln,w. Range Ln,w ≥ 25 dB | ISO 10140-3:2021; ISO 10140-4:2021; ISO 717-2:2020 | Building acoustics | Range: Ln,w ≥ 25 dB | |
| ACL.04 | Laboratory test: Measurement of impact sound insulation of roofs, roof/ceiling systems and skylights excited by artificial rainfall, LIA. | ISO 10140-1 (annex K); ISO 10140-3:2021; ISO 10140-5:2021 | Building elements | ||
| ACL.05 | Laboratory measurement of the efectiveness of floor coverings in reducing impact sound transmission through concrete floors, ∆IIC | Test procedure adapted from standards ASTM E2179-21; ASTM E492-22; ASTM E989-21; ASTM E2235-04 | Building elements | ||
| ACL.06 | Laboratory measurement of the reduction of the transmitted impact noise by floor coverings ∆Lw. Range: ∆Lw ≤ 50 dB | ISO 10140-1:2021; ISO 10140-3:2021; ISO 10140-4:2021; ISO 717-2:2020 | Building acoustics | Range: ∆Lw ≤ 50 dB |