LABORATORY TESTS

Acoustics and Vibrations

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).

Testing areas (15)
Reference Designation/Description Accredited
assay
Reference
standards
Product/
Material
Comments
ACI.01 Environmental noise: Measurement of environmental noise. Annoyance response ISO 1996-1:2016; NP ISO 1996-2:2011; Anexo I do Decreto-Lei nº 9/2007; ACI.01.IE.01 (version no. 6, April 2016) Environmental noise
ACI.02 Environmental noise: Measurement of sound pressure levels. Determination of the average long-term exposure sound level. ISO 1996-1:2016; NP ISO 1996-2:2011; ACI.02.IE.01 (version no. 6, Abril 2016) Environmental noise
ACI.03 Building acoustics: Field measurement of airborne sound insulation between rooms and determination of the sound insulation index (except low-frequency sound insulation in rooms with a volume less than 25 m3) ISO 16283-1:2014; ISO 717-1:2013 Building elements The standardised low frequency sound insolation is performed in compartments with a volume below 25m3
ACI.04 Building acoustics: Field measurement of sound insulation of façades and façade elements and determination of the sound insulation index. Global loudspeaker method (except low-frequency sound insulation in rooms with a volume less than 25 m3) ISO 16283-3:2016; ISO 717-1:2013 Building elements The standardised low frequency sound insolation is performed in compartments with a volume below 25m3
ACI.05 Building acoustics: Measurement of reverberation time. Interrupted noise method (Engineering Method) ISO 3382-2:2008; ISO 3382-2:2008/Cor.1:2009
ACI.06 Building acoustics: Field measurement of impact sound insulation of floors and determination of the sound insulation index (except low-frequency sound insulation in rooms with a volume less than 25 m3) ISO 16283-2:2015 ISO 717-2:2013 The standardised low frequency sound insolation is performed in compartments with a volume below 25m3
ACI.07 Building acoustics: Measurement of sound pressure level from service equipment in buildings. Determination of the sound level of particular noise NP EN ISO 16032:2009 Nota 4 do Documento LNEC, 10 de Julho de 2015
ACI.08 Environmental noise: Measurement of sound pressure levels. Determination of the equivalent sound level ISO 1996-1:2016; NP ISO 1996-2:2011; ACI.08.IE.01 (version no. 6, April 2016)
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; ISO 10140-2:2010; ISO 10140-4:2010; ISO 717-1:2013 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.02.01 Calculation of road traffic noise reducing devices single-number rating
ACL.03 Laboratory test: Determination of impact sound insulation index, Ln, w. Range Ln,w ≥ 25 dB ISO 10140-3:2010; ISO 10140-3:2010/Amd 1:2015; ISO 10140-4:2010; ISO 717-2:2013 Building elements 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 140-18 Building elements
ACL.05 Laboratory measurement of the efectiveness of floor coverings in reducing impact sound transmission through concrete floors, ∆IIC ASTM E2179-03; ASTM E492-04; ASTM E989-89 Building elements