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LABORATORY TESTS

Testing areas (15)
Products (101)

Reference Designation/Description Accredited
assay
Reference
standards
Product/
Material
Comments (Administrator)
ACL.17.02 Determination of sound power levels of noise sources using sound pressure - Engineering Method ISO 3744:2010; Annex III of Portuguese Decree-Law 221/2006 Noise of machinery and equipment
ACL.19.02 Determination of the sound power level of noise using sound pressure - Survey method using an eveloping measurement surface over a reflecting plane ISO 3746:2010 Noise of machinery and equipment
ACL.23 Determination of sound power levels and sound energy levels of noise sources using sound pressure - Engineering/survey methods for use in situ in a reverberant environment ISO 3747:2010 Noise of machinery and equipment
ACL.24 Requirements for the performance and calibration of reference sound sources used for the determination of sound power levels ISO 6926:2016, ISO 6926:2016/AMD1:2020 Reference sound sources
ACL.28 Test methods for the qualification of free-field environments Annex A of ISO 3745:2012 + Amd1:2017; ISO 26101-1:2021 Anechoic and hemi-anechoic rooms
ACL.28.01 Generic procedure for evaluating the directivity of a sound source Annex B of ISO 26101-1:2021 Test sound sources
ACL.29 Sound-scattering properties of surfaces – Measurement of the random-incidence scattering coefficient in a reverberation room ISO 17497-1:2004 + Amd1:2014 Building elements
ACL.30 Sound-scattering properties of surfaces – Measurement of the directional diffusion coefficient in a free field ISO 17497-2:2012 Building elements
ACL.31 Measurement of the impulse response ISO 18233:2006 Building elements
ACL.32 Methods for calculating loudness – Part 1: Zwicker method ISO 532-1:2017 Noise sources
ACL.33 Psychoacoustic metrics for ITT equipment (tonality) ECMA-418 Noise sources