Items tagged with TEST METHOD Files

File size: 93.13 KB Download

Machinery and equipment: Declared noise emission values based on the determination of the combined standard deviation (NT ACOU 100)

NT ACOU 100

  • This Nordtest method provides quidelines for determining the A-weighted declared single-number and dual-number noise emission values of machinery and equipment based on the determination of their spectrum or A- and C-weighted noise levels.

File size: 2.16 MB Download

Shooting ranges: Prediction of noise (NT ACOU 099)

NT ACOU 099

  • This Nordtest prediction method specifies calculation of noise in the vicinity of shooting ranges, etc. from single shots fired with small arms.

File size: 107.96 KB Download

Railway traffic: Noise (NT ACOU 098)

NT ACOU 098

  • This Nordtest method specifies a method for measurement of A-weighted sound pressure levels (noise immission) from railway traffic inside and outside buildings and in open terrain.

File size: 69.48 KB Download

Vibratory plate compactors: Noise test code (NT ACOU 087)

NT ACOU 087

  • This Nordtest method specifies operating conditions and methods to determine the sound power level and the emission sound pressure level at the work station of vibratory plate compactors. The results can be used to compare different vibratory plate compactors.

File size: 90.31 KB Download

Acoustical screens: Rating and classification (NT ACOU 085)

NT ACOU 085

  • This Nordtest method gives methods for rating and classifying the sound attenuation and the sound absorption of screens intended for use in large rooms without partitions in order to increase speech privacy or noise insulation between working positions.

File size: 104.34 KB Download

Building elements: Sound insulation, intensity scanning under laboratory conditions (NT ACOU 084)

NT ACOU 084

  • This Nordtest method specifies a sound intensity scanning method to determine the sound reduction index, as defined by IS0 140/3, of a building element.

File size: 95.84 KB Download

Buildings: Vibration and shock, evaluation of annoyance (NT ACOU 082)

NT ACOU 082

  • This document specifies a method to measure the weighted acceleration level of vibration and shock in buildings for an evaluation of human annoyance from whole-body vibration.

File size: 52.35 KB Download

Ound signalling devices: Acoustic emission (NT ACOU 081)

NT ACOU 081

  • This NORDTEST method primarily specifies the way in which the acoustic properties of sound signalling devices are to be tested.

File size: 720.78 KB Download

Industrial plants: Noise emission (NT ACOU 080)

NT ACOU 080

  • This Nordtest engineering method specifies a method for measuring sound pressure levels at prescribed positions surrounding stationary noise sources at industrial plants and calculating the source strength based on the measured sound pressure levels.

File size: 65.90 KB Download

Air traffic: Noise immission, residental areas (NT ACOU 075)

NT ACOU 075

  • This document specifies a NORDTEST Method for measurements of outdoor air traffic noise immission in residential areas.

File size: 101.66 KB Download

Air traffic: Noise reductions of dwellings (NT ACOU 074)

NT ACOU 074

  • This document specifies a NORDTEST method for simple measurements of air traffic noise reduction of dwellings.

File size: 172.33 KB Download

Doors in buildings: Airborne sound insulation (NT ACOU 069)

NT ACOU 069

  • This NORDTEST method describes how to determine the sound reduction index of doors in buildings, i.e., in the presence of surrounding party walls whose contribution to the sound transmission may be significant.

File size: 145.11 KB Download

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

NT ACOU 056

  • This Nordtest method states procedures for measuring road traffic noise inside and outside buildings and in open terrain, under specified traffic and environmental conditions, at distances up to 100 m from the road.

File size: 70.69 KB Download

Rooms: Noise level (NT ACOU 042)

NT ACOU 042

  • This document specifies methods for measuring the A-weighted sound pressure level in rooms. The A-weighted sound pressure level is assumed to be due to noise from sources within the building. Guidelines for the correction of measurements made under one condition to values representative of other conditions are given in ANNEX A. ANNEX A is not an integral part of this method.

File size: 422.85 KB Download

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

NT ACOU 039

  • This NORDTEST method states procedures for measuring road traffic noise inside and outside buildings and in open terrain, under specified traffic and environmental conditions.

File size: 72.28 KB Download

Noise absorber pads: Sound absorption (NT ACOU 038)

NT ACOU 038

  • This NORDTEST method contains supplementary specifications to the measurement procedure stated in ISO/R 354-1963 (E) with regard to measurements on discrete sound absorbers, like noise absorber pads.

File size: 253.16 KB Download

Small building elements: sound insulation (NT ACOU 037 withdrawn)

NT ACOU 037

  • This document specifies a laboratory NORDTEST method of measuring airborne sound insulation of such small building elements as are defined under clause 2. The document also establishes directions about reporting and applying such test data.

    The results obtained may be used to develop building elements with approbiate acoustical proprties, to classify such elements according to their sound insulation properties and to etimate their influence on the sound insulation of partition constructions in buildings.

File size: 52.21 KB Download

Floor coverings, concrete or timber joist floors: Rating of impactsound improvement (NT ACOU 034)

NT ACOU 034

  • This NORDTEST method specifies a method of evaluating a single number index which describes the improvement in impact sound insulation due to a floor covering laid on a concrete floor.

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