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 页
Acoustics — Determination of sound power levels and sound energy levels of noise sources using sound pressure —Precision methods for reverberation test rooms
- ICS
- 17.140.01
- CCS
- 发布
- 2022-09-13
- 实施
Acoustics — Determination of sound power levels and sound energy levels of noise sources using sound pressure —Precision methods for anechoic rooms and hemi-anechoic rooms
- ICS
- 17.140.01
- CCS
- 发布
- 2022-09-13
- 实施
Acoustics — Determination of sound power levels and sound energy levels of noise sources using sound pressure —Precision methods for reverberation test rooms
- ICS
- 17.140.01
- CCS
- 发布
- 2022-09-13
- 实施
Acoustics — Determination of sound power levels and sound energy levels of noise sources using sound pressure —Precision methods for anechoic rooms and hemi-anechoic rooms
- ICS
- 17.140.01
- CCS
- 发布
- 2022-09-13
- 实施
Acoustics — Determination of sound power levels and sound energy levels of noise sources using sound pressure —Survey method using an enveloping measurement surface over a reflecting plane
- ICS
- 17.140.01
- CCS
- 发布
- 2022-09-13
- 实施
Acoustics — Determination of sound power levels and sound energy levels of noise sources using sound pressure — Engineering/survey methods for use in situ in a reverberant environment
- ICS
- 17.140.01
- CCS
- 发布
- 2022-09-13
- 实施
Acoustics — Determination of sound power levels and sound energy levels of noise sources using sound pressure — Engineering/survey methods for use in situ in a reverberant environment
- ICS
- 17.140.01
- CCS
- 发布
- 2022-09-13
- 实施
Filters for the measurement of audible sound in the presence of ultrasound
- ICS
- 17.140.01
- CCS
- 发布
- 20220906
- 实施
- 20220906
Acoustics-determination of sound absorption coefficient and impedance in impedance tubes－Part 2：Transfer-function method
- ICS
- 17.140.01
- CCS
- 发布
- 20220810
- 实施
- 20220810
This document applies to hearing aid fitting management (HAFM) services offered by hearing aid professionals (HAP) when providing benefit for their clients. The provision of hearing aids relies on the knowledge and practices of a hearing aid professional, to ensure the proper fitting and adequate service in the interest of the client with hearing loss. This document specifies general processes of HAFM from the client profile to the follow-up through administering, organising and controlling hearing aid fitting through all stages. It also specifies important preconditions such as education, facilities and systems that are required to ensure proper services. The focus of this document is the services offered to the majority of adult clients with hearing impairment. It is recognized that certain populations with hearing loss such as children, persons with other disabilities or persons with implantable devices can require services outside the scope of this document. This document generally applies to air conduction hearing aids and for the most part also to bone conduction devices. Hearing loss can be a consequence of serious medical conditions. Hearing aid professionals are not in a position to diagnose or treat such conditions. When assisting clients seeking hearing rehabilitation without prior medical examination, hearing aid professionals are expected to be observant of symptoms of such conditions and refer to proper medical care. Further to the main body of the document, which specifies the HAFM requirements and processes, several informative annexes are provided. Appropriate education of hearing aid professionals is vital for exercising HAFM. Annex A defines the competencies required for the HAFM processes. Annex B offers a recommended curriculum for the education of hearing aid professionals. Annex C is an example of an appropriate fitting room. Annex D gives guidance on the referral of clients for medical or other specialist examination and treatment. Annex E is a recommendation for important information to be exchanged with the client during the process of HAFM. Annex F is a comprehensive terminology list offering definitions of the most current terms related to HAFM. It is the intention that these annexes be helpful to those who wish to deliver HAFM of the highest quality.
Acoustics — Hearing aid fitting management (HAFM)
- ICS
- 17.140.01
- CCS
- 发布
- 2022-05-12
- 实施
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 omni-directional 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 (ISO 26101-1:2021)
- ICS
- 17.140.01
- CCS
- 发布
- 2022-05-11
- 实施
- 2022-08-31
1.1 This specification describes the construction and installation of standard reference specimens for quality control of laboratory sound transmission loss measurements using Test Method E90. 1.2 Laboratories may choose to construct and test all of the reference specimens described here or only a subset. Specific specimens may be required by a test method or an accrediting agency. 1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only. 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 Specification for Reference Specimen for Sound Transmission Loss
- ICS
- 17.140.01
- CCS
- 发布
- 2022-04-01
- 实施
Acoustics — Determination of sound power levels of noise sources using sound pressure — Engineering methods for small, movable sources in reverberant fields — Part 2: Methods for special reverberation
- ICS
- 17.140.01
- CCS
- 发布
- 2021-12-29
- 实施
Acoustics — Determination of sound power levels of noise sources using sound pressure — Engineering methods for small, movable sources in reverberant fields — Part 2: Methods for special reverberation
- ICS
- 17.140.01
- CCS
- 发布
- 2021-12-29
- 实施
本文件规定了船上声源声学成像和发动机声压级检测的术语和定义、要求、检测方法。
Test methods of sound source acoustic imaging and engine's SPL in ship
- ICS
- 17.140.01
- CCS
- M732
- 发布
- 2021-12-15
- 实施
- 2021-12-15
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 small movable sources in reverberant fields — Part 1: Comparison
- 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 small movable sources in reverberant fields — Part 1: Comparison
- 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
