Items starting with R Files

File size: 1.95 MB Download

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

NT ACOU 116

  • This method specifies how to determine the noise emission characteristics of road vehicles to obtain input data to be used in prediction methods for road traffic noise.

File size: 121.90 KB Download

Radiator valves: Determination of the sound power level in the laboratory (NT ACOU 101)

NT ACOU 101

  • This Nordtest Method specifies a method of measuring in the laboratory, the noise emission (sound power level) from a radiator valve coupled to a specified reference radiator when a flow of water is forced through the valve at specified reference operating conditions.

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: 70.42 KB Download

Rooms: Reverberation time – Interrupted noise precision method (NT ACOU 059)

NT ACOU 059

  • This document specifies a precision laboratory NORDTEST method of measuring reverberation times according to the interrupted noise method.

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: 40.97 KB Download

Rooms: Reverberation time (NT ACOU 053)

NT ACOU 053

  • This document specifies methods to measure the reverberation time in rooms.

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: 70.69 KB Download

Reverberant test rooms: Sound absorption - Reference sound source (NT ACOU 040)

NT ACOU 040

  • This document specifies a NORDTEST method, using a reference sound source, for determination of the normalization constant 10 lg A of a room.

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.

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Nordtest

Nordtest is a trademark of Nordic cooperation in conformity assessment. The emphasis of Nordtest is to develop, promote and innovate Nordic test methods and pre-normative activity. Nordtest endeavours to remove technical barriers to trade and promotes the concept: “Approved once, accepted everywhere”.