17.140.01 声学测量和噪声抑制综合 标准查询与下载



共找到 837 条与 声学测量和噪声抑制综合 相关的标准,共 56

Acoustics — Attenuation of sound during propagation outdoors —Part 1: Calculation of the absorption of Sound by the atmosphere

ICS
17.140.01
CCS
发布
2021-12-03
实施

Acoustics — Attenuation of sound during propagation outdoors —Part 2: General method of calculation

ICS
17.140.01
CCS
发布
2021-12-03
实施

Acoustics — Determination of sound power levels and sound energy levels of noise sources using sound pressure — Engineering methods for an essentially free field over a reflecting plane

ICS
17.140.01
CCS
发布
2021-12-03
实施

1.1 This guide defines simple economical procedures for testing or comparing the performance of acoustic emission sensors. These procedures allow the user to check for degradation of a sensor or to select sets of sensors with nearly identical performances. The procedures are not capable of providing an absolute calibration of the sensor nor do they assure transferability of data sets between organizations. 1.2 Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Standard Guide for Determining the Reproducibility of Acoustic Emission Sensor Response

ICS
17.140.01
CCS
发布
2021-11-01
实施

1.1 System performance verification methods launch stress waves into the examination article on which the sensor is mounted. The resulting stress wave travels in the examination article and is detected by the sensor(s) in a manner similar to acoustic emission. 1.2 This guide describes methods which can be used to verify the response of an Acoustic Emission system including sensors, couplant, sensor mounting devices, cables and system electronic components. 1.3 Acoustic emission system performance characteristics, which may be evaluated using this document, include some waveform parameters, and source location accuracy. 1.4 Performance verification is usually conducted prior to beginning the examination. 1.5 Performance verification can be conducted during the examination if there is any suspicion that the system performance may have changed. 1.6 Performance verification may be conducted after the examination has been completed. 1.7 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.8 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.9 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Standard Guide for Acoustic Emission System Performance Verification

ICS
17.140.01
CCS
发布
2021-11-01
实施

1.1 This test method describes a means of objectively assessing speech privacy between locations in open plan spaces. This test method relies upon acoustical measurements, published information on speech levels, and standard methods for assessing speech communication. This test method does not measure the performance of individual open plan components which affect speech privacy; but rather, it assesses the privacy which results from a particular configuration of components (1, 2).2 1.2 This test method is intended to be a field test for the assessment of speech privacy in actual open plan spaces. However, this test method could be used in mock-up spaces and in environments arranged to simulate an open plan space. 1.3 This test method is suitable for use in many open plan spaces including traditional open offices, focus areas, and collaboration spaces. In addition to office buildings, these types of spaces will also be found in healthcare buildings, institutional spaces, schools, etc. It is not directly applicable for measuring the speech privacy between open plan and enclosed spaces or between fully enclosed spaces. 1.4 This test method relies upon the Articulation Index, which objectively predicts the intelligibility of speech. While both the Articulation Index and this test method can be expected to reliably predict speech privacy, neither predicts the specific effective speech privacy afforded to particular individual occupants. 1.5 The values stated in SI units are to be regarded as the standard. The inch-pound units in parentheses are for information only. 1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Standard Test Method for Objective Measurement of Speech Privacy in Open Plan Spaces Using Articulation Index

ICS
17.140.01
CCS
发布
2021-11-01
实施

Non-destructive testing. Acoustic emission testing. Equipment characterisation. Verification of operating characteristics

ICS
17.140.01
CCS
发布
2021-10-21
实施
2021-10-21

本文件规定了蒸汽排放消声器的术语和定义、分类、型号、制造、要求、试验方法、检验规则、标志、包装、运输和贮存。 本文件适用于降低锅炉、过热器、安全阀、疏水管道等设备排放蒸汽时产生的噪声使用的蒸汽排放消声器(以下简称消声器)。

Steam Emission Muffler

ICS
17.140.01
CCS
C401
发布
2021-10-19
实施
2021-10-19

Determination of sound absorption coefficient and impedance in impedance tubes Part 1:Method using standing wave ratio

ICS
17.140.01
CCS
发布
20211012
实施
20211012

Calculation of outdoor sound propagation and assignment of noise levels and population to buildings - Including additional Specifications to the Sound Prediction Model according to EU-Directive 2015/996

ICS
17.140.01
CCS
发布
2021-10-01
实施
2021-10-01

Acoustics - Hearing aid fitting management (HAFM) (ISO 21388:2020)

ICS
17.140.01
CCS
发布
2021-09-30
实施
2021-09-30

Acoustics -- Determination of sound immission from sound sources placed close to the ear -- Part 2: Technique using a manikin (ISO 11904-2:2021)

ICS
17.140.01
CCS
发布
2021-08-18
实施
2021-08-18

Acoustics - Determination of sound immission from sound sources placed close to the ear - Part 2: Technique using a manikin (ISO 11904-2:2021)

ICS
17.140.01
CCS
发布
2021-07-01
实施
2021-07-01

1.1 This guide covers many measurement methods and criteria for evaluating environmental noise. It includes the following: 1.1.1 The use of weightings, penalties, and normalization factors; 1.1.2 Types of noise measurements and criteria, indicating their limitations and best uses; 1.1.3 Sources of criteria; 1.1.4 Recommended procedures for criteria selection; 1.1.5 A catalog of selected available criteria; and 1.1.6 Suggested applications of sound level measurements and criteria. 1.2 Criteria Selection—This guide will assist users in selecting criteria for the following: 1.2.1 Evaluating the effect of existing or potential outdoor sounds on a community; or 1.2.2 Establishing or revising local noise ordinances, codes, or bylaws, including performance standards in zoning regulations. 1.3 Reasons for Criteria—This guide discusses the many reasons for noise criteria, ways sound can be measured and specified, and advantages and disadvantages of the most widely used types of criteria. The guide refers the user to appropriate documents for more detailed information and guidance. The listing of specific criteria includes national government regulatory requirements. Users needing further general background on sound and sound measurement are directed to the books listed in the References section. 1.4 Criteria in Regulations—Certain criteria are specified to be used by government regulation, law, or ordinance for specific purposes. Ease of enforcement and cost impact on government are considerations for these criteria. They may not be the most appropriate criteria in some circumstances. This guide will discuss the limitations of these criteria. 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Standard Guide for Applying Environmental Noise Measurement Methods and Criteria

ICS
17.140.01
CCS
发布
2021-07-01
实施

ISO/PAS 20065:2016 describes a method for the objective determination of the audibility of tones in environmental noise. It is intended to augment the usual method for evaluation on the basis of aural impression, in particular, in cases in which there is no agreement on the degree of the audibility of tones. The method described can be used if the frequency of the tone being evaluated is equal to, or greater than, 50 Hz. In other cases, if the tone frequency is below 50 Hz, or if other types of noise (such as screeching) are to be captured, then this method cannot replace subjective evaluation. The method presented herein can be used in continuous measurement stations that work automatically.

Acoustics — Objective method for assessing the audibility of tones in noise — Engineering method

ICS
17.140.01
CCS
发布
2021-07-01
实施

Acoustics -- Requirements for the performance and calibration of reference sound sources used for the determination of sound power levels -- Amendment 1 (ISO 6926:2016/Amd 1:2020)

ICS
17.140.01
CCS
发布
2021-06-10
实施
2021-06-10

Acoustics – Test methods for the qualification of the acoustic environment – Part 1: Qualification of free-field environments

ICS
17.140.01
CCS
发布
2021-05-26
实施
2021-05-26

Acoustics -- Determination and application of measurement uncertainties in building acoustics -- Part 1: Sound insulation (ISO 12999-1:2020)

ICS
17.140.01
CCS
发布
2021-05-10
实施
2021-05-10

Acoustics - Laboratory measurement of sound insulation of building elements - Part 2 : measurement of airborne sound insulation

ICS
17.140.01
CCS
P31
发布
2021-05-05
实施
2021-08-28

This document specifies methodology for qualifying acoustic spaces as anechoic and hemi-anechoic spaces meeting the requirements of a free sound field. This document specifies discrete-frequency and broad-band test methods for quantifying the performance of anechoic and hemi-anechoic spaces, defines the qualification procedure for an omnidirectional sound source suitable for free-field qualification, gives details of how to present the results and describes uncertainties of measurement. This document has been developed for qualifying anechoic and hemi-anechoic spaces for a variety of acoustical measurement purposes. It is expected that, over time, various standards and test codes will refer to this document in order to qualify an anechoic or hemi-anechoic space for a particular measurement. Annex D provides guidelines for the specification of test parameters and qualification criteria for referencing documents. In the absence of specific requirements or criteria, Annex A provides qualification criteria and measurement requirements to qualify anechoic and hemi-anechoic spaces for general purpose acoustical measurements. This document describes the divergence loss method for measuring the free sound field performance of an acoustic environment.

Acoustics - Test methods for the qualification of the acoustic environment - Part 1: Qualification of free-field environments

ICS
17.140.01
CCS
A42
发布
2021-05-00
实施



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