发布时间:2024-05-27 17:49:26 - 更新时间:2024年06月29日 15:22
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American National Standard Criteria for Evaluating Room Noise
Railway applications. Noise emission. Measurement of noise inside driver's cabs
This standard applies to water chilling systems, pumps and similar operating machines and parts thereof, which for reasons of size or operating
Method of Measuring Sound Within an Equipment Space
Acoustics - Measurement of high-frequency noise emitted by computer and business equipment
Railway applications - Noise emission - Measurement of noise inside driver's cabs
This European Standard specifies a type test method to measure noise levels inside the driver's cabs of railway vehicles for assessing compliance
Railway applications – Noise Emission – Measurement of noise inside driver's cabs
Railway applications - Noise Emission - Measurement of noise inside driver's cabs
Railway applications - Noise Emission - Measurement of noise inside driver's cabs
Method of test for noise of equipment units for dwellings
Acoustics-Measurement of airborne noise emitted by construction equipment intended for outdoor use-Method for determining compliance with noise limits
Sound Level Meters (Apparatus for the Objective Measurement of Room Noise) - Telephone Transmission Quality (Study Group XII) 1 pp
SOUND LEVEL METERS (APPARATUS FOR THE OBJECTIVE MEASUREMENT OF ROOM NOISE)
The CCITT recommends the adoption of the sound level meter specified in [1] in conjunction, for most uses,with the octave, half, and third octave
SOUND LEVEL METERS (APPARATUS FOR THE OBJECTIVE MEASUREMENT OF ROOM NOISE)
The CCITT recommends the adoption of the sound level meter specified in [1] in conjunction, for most uses,with the octave, half, and third octave
SOUND LEVEL METERS (APPARATUS FOR THE OBJECTIVE MEASUREMENT OF ROOM NOISE)
Acoustics. Laboratory method of noise measurement from water supply installations inside buildings
Acoustics. Measurement of high-frequency noise emitted by computer and business equipment.
American National Standard Criteria for Evaluating Room Noise
Railway applications. Noise emission. Measurement of noise inside driver's cabs
This standard applies to water chilling systems, pumps and similar operating machines and parts thereof, which for reasons of size or operating
Method of Measuring Sound Within an Equipment Space
Acoustics - Measurement of high-frequency noise emitted by computer and business equipment
Railway applications - Noise emission - Measurement of noise inside driver's cabs
This European Standard specifies a type test method to measure noise levels inside the driver's cabs of railway vehicles for assessing compliance
Railway applications – Noise Emission – Measurement of noise inside driver's cabs
Railway applications - Noise Emission - Measurement of noise inside driver's cabs
Railway applications - Noise Emission - Measurement of noise inside driver's cabs
Method of test for noise of equipment units for dwellings
Acoustics-Measurement of airborne noise emitted by construction equipment intended for outdoor use-Method for determining compliance with noise limits
Sound Level Meters (Apparatus for the Objective Measurement of Room Noise) - Telephone Transmission Quality (Study Group XII) 1 pp
SOUND LEVEL METERS (APPARATUS FOR THE OBJECTIVE MEASUREMENT OF ROOM NOISE)
The CCITT recommends the adoption of the sound level meter specified in [1] in conjunction, for most uses,with the octave, half, and third octave
SOUND LEVEL METERS (APPARATUS FOR THE OBJECTIVE MEASUREMENT OF ROOM NOISE)
The CCITT recommends the adoption of the sound level meter specified in [1] in conjunction, for most uses,with the octave, half, and third octave
SOUND LEVEL METERS (APPARATUS FOR THE OBJECTIVE MEASUREMENT OF ROOM NOISE)
Acoustics. Laboratory method of noise measurement from water supply installations inside buildings
Acoustics. Measurement of high-frequency noise emitted by computer and business equipment.