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Home »Methods» Archive for   »  Acoustic

Category: Acoustic

Focus is at the acoustic and vibration performance of buildings, machinery and environment. Special focus at impact on people.

Acoustics: Determination in the field of structure-borne sound source strength of building service equipment (NT ACOU 117)

Posted onApril 1, 2009July 15, 2020Author

Abstract This substitution method may be used as a survey method in the field to determine structure borne sound source strength of machines and building Read more…

CategoriesAcoustic, MethodsTagsbuilding service equipment, EN 15657, low frequency, source strength, structure-borne sound, substitution method, tapping machine

Road vehicles: Determination of noise emission (NT ACOU 116)

Posted onNovember 1, 2004July 14, 2020Author

Report #: NT ACOU 116 Approved: November 2004 Size: 1.95 MB Abstract Scope This method specifies how to determine the noise emission characteristics of road Read more…

CategoriesAcoustic, MethodsTagslognormal simulation, Monte Carlo simulation, noise, statistical elimination, test methods, vehicle

Measurement of occupational noise eaxposure of workers: Part i: survey method (NT ACOU 114)

Posted onMay 1, 2003July 14, 2020Author

Report #: NT ACOU 114 Approved: May 2003 Size: 102.68 KB Abstract This Nordtest Method specifies survey methods for determination of occupational noise exposure at Read more…

CategoriesAcoustic, MethodsTagsacoustics, occupational noise, test methods, work places, workers

Measurement of occupational noise exposure of workers: Part ii: engineering method (NT ACOU 115)

Posted onMay 1, 2003July 14, 2020Author

Report #: NT ACOU 115 Approved: May 2003 Hits: 0 Version: Updated 20-09-2007 Size: 166.17 KB Abstract This Nordtest method specifies an engineering method for Read more…

CategoriesAcoustic, MethodsTagsacoustics, measurements, occupational noise, test methods, work places, workers

Shooting ranges: Prediction of noise (NT ACOU 099)

Posted onNovember 15, 2002July 15, 2020Author

Report #: NT ACOU 099 Approved: November 2002 Size: 2.16 MB Abstract This Nordtest prediction method specifies calculation of noise in the vicinity of shooting Read more…

CategoriesAcoustic, MethodsTagsprediction of noise, shooting ranges, test methods

Road traffic: Measurement of noise immission – Engineering method (NT ACOU 039)

Posted onMay 15, 2002July 15, 2020Author

Report #: NT ACOU 039 Approved: May 2002 Size: 422.85 KB Abstract This NORDTEST method states procedures for measuring road traffic noise inside and outside Read more…

CategoriesAcoustic, MethodsTagsacoustics, noise emmision, test methods, traffic noise

Road traffic: Measurement of noise immission – survey method (NT ACOU 056)

Posted onMay 15, 2002July 15, 2020Author

Report #: NT ACOU 056 Approved: May 2002 Size: 145.11 KB Abstract This Nordtest method states procedures for measuring road traffic noise inside and outside Read more…

CategoriesAcoustic, MethodsTagsacoustics, noise emmision, test methods, traffic noise

Acoustics: Human sound perception – measurement positions for measurement of loudness (NT ACOU 110)

Posted onMay 1, 2002July 14, 2020Author

Report #: NT ACOU 110 Approved: May 2002 Hits: 0 Size: 80.81 KB Abstract The traditional physical descriptor, the A-weighted sound pressure level, LPA, is Read more…

CategoriesAcoustic, MethodsTagsacoustics, guidelines, measurements position, psycho acoustic, sound perception

Acoustics: Human sound perception – Guidelines for listening tests (NT ACOU 111)

Posted onMay 1, 2002July 14, 2020Author

Report #: NT ACOU 111 Approved: May 2002 Hits: 0 Size: 138.62 KB Abstract It is the intention of these guidelines to provide a tool Read more…

CategoriesAcoustic, MethodsTagsacoustics, guidelines, listening tests, noise, psycho acoustic, sound perception

Acoustics: Prominence of impulsive sounds and for adjustment of Laeq (NT ACOU 112)

Posted onMay 1, 2002July 14, 2020Author

Report #: NT ACOU 112 Approved: May 2002 Hits: 0 Size: 210.44 KB Abstract Noise with prominent impulses is more annoying than continuous types of Read more…

CategoriesAcoustic, MethodsTagsacoustics, impulsive sounds, methods, noise

Vehicles: Determination of immission relevant noise emission (NT ACOU 109)

Posted onNovember 1, 2001July 14, 2020Author

Report #: NT ACOU 109 Approved: November 2001 Hits: 0 Size: 129.12 KB Abstract This NORDTEST method specifies determination of the noise emission of vehicles Read more…

CategoriesAcoustic, MethodsTagsmeasurements, road traffic noise, test methods, vehicle

Acoustics: In situ measurements of permanently installed public address systems (NT ACOU 108)

Posted onJune 1, 2001July 15, 2020Author

Report #: NT ACOU 108 Approved: June 2001 Size: 143.50 KB Abstract This Nordtest method specifies a practical test method for in situ measurements of Read more…

CategoriesAcoustic, MethodsTagsin situ measurements, sound reinforcement system, technical specification, test methods

Acoustics: Assessment of annoyance caused by vibrations in dwellings from road and rail traffic by means of socio-vibrational and social surveys (NT ACOU 106)

Posted onMay 1, 2001July 15, 2020Author

Report #: NT ACOU 106 Approved: May 2001 Size: 574.58 KB Abstract This Nordtest Method is a guide to the content, conduct, text file output Read more…

CategoriesAcoustic, MethodsTagsannoyance, dwellings, noise, railway, road traffic noise, social survey, socio, test methods, traffic, vibration

Acoustics: Framework for the verification of environmental noise calculation software (NT ACOU 107)

Posted onMay 1, 2001July 15, 2020Author

Report #: NT ACOU 107 Approved: May 2001 Size: 84.96 KB Abstract This NORDTEST method gives the framework for the verification and subsequent type approval/certification Read more…

CategoriesAcoustic, MethodsTagscalculation software, certification, conformity, environmental noise, test methods, verification

Air terminal devices: Acoustic transmission loss (NT ACOU 105)

Posted onApril 1, 2000July 15, 2020Author

Report #: NT ACOU 105 Approved: April 2000 Size: 264.85 KB Abstract The method describes a test arrangement and procedure for measuring transmission loss without Read more…

CategoriesAcoustic, MethodsTagsacoustics, test methods, transmission loss, ventilation

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