17.140.99 有关声学的其他标准 标准查询与下载

GOST 31326-2006 噪声.隔音罩和隔音室的噪声控制指南

Noise. Guidelines for noise control by enclosures and cabins

ASTM D7145-05(2015) 采用声学方法测量大气气流和湍流剖面的标准指南

5.1 Sodars have found wide applications for the remote measurement of wind and turbulence profiles in the atmosphere, particularly in the gap between meteorological towers and the lower range gates of wind profiling radars. The sodar’s far field acoustic power is also used for refractive index calculations and to estimate atmospheric stability, heat flux, and mixed layer depth (1-5).3 Sodars are useful for these purposes because of strong interaction between sound waves and the atmosphere’s thermal and velocity micro-structure that produce acoustic returns with substantial signal-to-noise ratios (SNR). The returned echoes are Doppler-shifted in frequency. This frequency shift, proportional to the radial velocity of the scattering surface, provides the basis for wind measurement. Advantages offered by sodar wind sounding technology include reasonably low procurement, operating, and maintenance costs, no emissions of eye-damaging light beams or electromagnetic radiation requiring frequency clearances, and adjustable frequencies and pulse lengths that can be used to optimize data quality at desired ranges and range resolutions. When properly sited and used with adequate sampling methods, sodars can provide continuous wind and turbulence profile information at height ranges from a few tens of meters to over a kilometre for typical averaging periods of 1 to 60 minutes. 1.1 This guide describes the application of acoustic remote sensing for measuring atmospheric wind and turbulence profiles. It includes a summary of the fundamentals of atmospheric sound detection and ranging (sodar), a description of the methodology and equipment used for sodar applications, factors to consider during site selection and equipment installation, and recommended procedures for acquiring valid and relevant data. 1.2 This guide applies principally to pulsed monostatic sodar techniques as applied to wind and turbulence measurement in the open atmosphere, although many of the definitions and principles are also applicable to bistatic configurations. This guide is not directly applicable to radio-acoustic sounding systems (RASS), or tomographic methods. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this guide.

Standard Guide for Measurement of Atmospheric Wind and Turbulence Profiles by Acoustic Means

SANS 10154-2:2004 纯音听力计的校准．第2部分：骨骼传导

Covers the method for the on-site verification of the bone conduction of the audiometer in the frequency range 250 Hz to 8000 Hz.

Calibration of pure-tone audiometers Part 2: Bone conduction

SANS 10154-1:2004 纯音听力计的校准．第1部分：空气传导

Covers the method for the on-site verification of all types of pure-tone air conduction audiometers.

Calibration of pure-tone audiometers Part 1: Air conduction

EN ISO 7235:2003 声学.管道消音器和气端装置的实验室测量步骤.插入损失,流动噪声和总压损失ISO 7235-2003

Acoustics Laboratory measurement procedures for ducted silencers and air-terminal units Insertion loss, flow noise and total pressure loss ISO 7235:2003

LST EN ISO 11821:2002 声学 可移动屏幕的原位声衰减测量（ISO 11821:1997）

Acoustics - Measurement of the in situ sound attenuation of a removable screen (ISO 11821:1997)

DIN EN ISO 15667:2001 声学.采用隔音罩和隔音室的噪声控制指南

The document deals with the performance of enclosures designed for noise control. It specifies the acoustical and operational requirements to be agreed upon between supplier or manufacturer and user. Three types of enclosures are distinguished: Integrated enclosures (part of the machine), not considered herein; eclosures covering or containing the machine, the main subject; cabins protecting operators of machines, where different requirments apply.#,,#

Acoustics - Guidelines for noise control by enclosures and cabins (ISO 15667:2000); German version EN ISO 15667:2000

DIN EN ISO 7029:2001 声学.听阈和年龄的关系的统计分布(ISO 7029:2000)

Acoustics - Statistical distribution of hearing thresholds as a function of age (ISO 7029:2000); German version EN ISO 7029:2000

BS EN ISO 15667:2000 声学.采用隔音罩和隔音室控制的噪音控制指南

This International Standard deals with the performance of enclosures and cabins designed for noise control. It outlines the acoustical and operational requirements which are to be agreed upon between the supplier or manufacturer and the user of such enclosures and cabins. This International Standard is applicable to two types of acoustic enclosures and cabins, as follows. a) Cabins for noise protection of operators: free-standing cabins and cabins attached to machines (e.g. vehicles, cranes). b) Free-standing enclosures covering or housing machines: enclosures with a fraction of acoustically untreated open area of less than 10 % of the total surface are the main subject of this International Standard. In this International Standard, emphasis is put on lightweight constructions. However, thick, massive structures as, for example, brick walls, are not excluded. Enclosures and cabins with more than 10 % open and untreated area belong to the category of partial enclosures. They are not the subject of this International Standard. A third type of enclosure, integrated enclosures which form a part of the machine and are firmly attached to it, is not the subject of this International Standard.

Acoustics. Guidelines for noise control by enclosures and cabins

BS EN ISO 7029:2000 声学.听阈与年龄的关系的统计分布

This International Standard provides descriptive statistics of the hearing threshold for populations of various ages. It specifies the following, for the range of audiometric frequencies from 125 Hz to 8 000 Hz and for populations of otologically normal persons of a given age within the age limits of 18 years to 70 years inclusive: a) the expected median value of hearing thresholds given relative to the median hearing threshold at the age of 18 years; b) the expected statistical distribution above and below the median value. The data are applicable for estimating the amount of hearing loss caused by a specific agent in a population. Such a comparison is valid if the population under study consists of persons who are otologically normal except for the effect of the specific agent. Noise exposure is an example of a specific agent and for this application selected data from this International Standard are referred to as "Data Base A" in ISO 1999. The data may also be used to assess an individual's hearing in relation to the distribution of hearing thresholds which is normal for the person's age group. However, it is not possible to determine for an individual precisely which part of an observed hearing loss is attributable to an accumulation of detrimental effects on the hearing which increase with age, and which part has been caused by other factors such as noise. The hearing threshold deviation as defined herein and the hearing threshold level as defined in other standards (ISO 389-1, ISO 8253-1, ISO 8253-2, IEC 60645-1) express the hearing threshold of an individual or an individual ear relative to, respectively, a) the median hearing threshold of a population of 18-year-old persons, or b) a reference zero level specified in various parts of ISO 389. To the extent that the reference zero level represents the median of the 18-year-old population, the values of the two terms will be the same.

Acoustics - Statistical distribution of hearing thresholds as a function of age

NF S31-082:2000 声学.作为年龄功能的听阈统计分布

Acoustics - Statistical distribution of hearing thresholds as a function of age.

EN ISO 15667:2000 声学 采用隔声罩和隔声小室的噪声控制指南 ISO 15667-2000

Acoustics - Guidelines for Noise Control by Enclosures and Cabins

EN ISO 7029:2000 声学.作为龄期函数的听力阈的统计分布ISO 1029-2000;代替EN 27029-1991

Acoustics - Statistical Distribution of Hearing Thresholds as a Function of Age ISO 1029:2000; Supersedes EN 27029:1991

ISO 15667:2000 声学 采用隔声罩和隔声小室的噪声控制指南

This International Standard deals with the performance of enclosures and cabins designed for noise control. It outlines the acoustical and operational requirements which are to be agreed upon between the supplier or manufacturer and the user of such enclosures and cabins. This International Standard is applicable to two types of acoustic enclosures and cabins, as follows. a) Cabins for noise protection of operators: free-standing cabins and cabins attached to machines (e.g. vehicles, cranes). b) Free-standing enclosures covering or housing machines: enclosures with a fraction of acoustically untreated open area of less than 10 % of the total surface are the main subject of this International Standard. In this International Standard, emphasis is put on lightweight constructions. However, thick, massive structures as, for example, brick walls, are not excluded. Enclosures and cabins with more than 10 % open and untreated area belong to the category of partial enclosures. They are not the subject of this International Standard. A third type of enclosure, integrated enclosures which form a part of the machine and are firmly attached to it, is not the subject of this International Standard.

Acoustics - Guidelines for noise control by enclosures and cabins

NF S31-660*NF EN ISO 14163:1999 声学.消音器噪声控制指南

Acoustics. Guidelines for noise control by silencers.

DIN EN ISO 14163:1999 声学.消音器控制噪声指南

The document deals with the practical selection of silencers for noise control in gaseous media. It specifies the acoustical and operational requirements to be agreed between the supplier or manufacturer and the user of a silencer. This document describes the basic mechanisms, but it is not intended as a silencer design guide.#,,#

Acoustics - Guidelines for noise control by silencers (ISO 14163:1998); German version EN ISO 14163:1998

BS EN ISO 14163:1998 声学.消音器噪声控制指南

This International Standard deals with the practical selection of silencers for noise control in gaseous media. It specifies the acoustical and operational requirements which are to be agreed upon between the supplier or manufacturer and the user of a silencer. The basic principles of operation are described in this International Standard, but it is not a silencer design guide. The silencers described are suitable, among others, — for attenuating system noise and preventing crosstalk in heating, ventilation and air-conditioning (HVAC) equipment; — for preventing or reducing sound transmission through ventilation openings from rooms with high inside sound levels; — for attenuating blow-off noise generated by high-pressure lines; — for attenuating intake and exhaust noise generated by internal combustion engines; and — for attenuating intake and outlet noise from fans, compressors and turbines. They are classified according to their types, performance characteristics and applications. Active and adaptive passive noise-control systems are not covered in detail in this International Standard.

Acoustics. Guidelines for noise control by silencers

ISO 14163:1998 声学 消声器噪声控制指南

This International Standard deals with the practical selection of silencers for noise control in gaseous media. It specifies the acoustical and operational requirements which are to be agreed upon between the supplier or manufacturer and the user of a silencer. The basic principles of operation are described in this International Standard, but it is not a silencer design guide. The silencers described are suitable, among others, — for attenuating system noise and preventing crosstalk in heating, ventilation and air-conditioning (HVAC) equipment; — for preventing or reducing sound transmission through ventilation openings from rooms with high inside sound levels; — for attenuating blow-off noise generated by high-pressure lines; — for attenuating intake and exhaust noise generated by internal combustion engines; and — for attenuating intake and outlet noise from fans, compressors and turbines. They are classified according to their types, performance characteristics and applications. Active and adaptive passive noise-control systems are not covered in detail in this International Standard.

Acoustics - Guidelines for noise control by silencers

ANSI S2.22-1998 弹性材料的动态机械特性测量的谐振法

This Standard defines a procedure for measurement and analysis of the dynamic properties of viscoelastic materials using a resonance method. The Standard applies to materials used in sound and vibration damping systems operating at frequencies from a fra

Resonance Method for Measuring the Dynamic Mechanical Properties of Viscoelastic Materials

ANSI S2.23-1998 弹性材料的动态机械特性测量的单悬梁法

This Standard defines a method for measuring the dynamic mechanical properties of viscoelastic materials using a cantilever beam technique. The dynamic mechanical properties are expressed in terms of the frequency dependence of Young's modulus and loss f

Single Cantilever Beam Method for Measuring the Dynamic Mechanical Properties of Viscoelastic Materials