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声学 声学环境合格评定的测试方法 第1部分：自由场环境的合格评定（ISO 26101-1:2021）

Acoustics - Test methods for the qualification of the acoustic environment - Part 1: Qualification of free-field environments (ISO 26101-1:2021)

声学 听力测试方法 纯音和窄带测试信号的声场听力测试

Acoustic Listening Test Methods Sound Field Listening Tests of Pure Tone and Narrowband Test Signals

声学 声学环境鉴定测试方法 第1部分：自由场环境鉴定

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

测量液压流体动力系统和部件的空气噪声 电机试验方法

Measurement of airborne noise from hydraulic fluid power systems and components. Method of test for motors

液压流体动力系统和部件的空气噪声测量 - 第6部分：使用平行六面体麦克风阵列的泵测试方法

Measurement of airborne noise from hydraulic fluid power systems and components — Part 6 : Method of test for pumps using a parallelepiped microphone array

声学 机器和美利体育官网首页网址发射的噪声 在一个反射平面上方可忽略环境校正条件下进行工作位置和其他指定位置的发射声压级测量

Acoustics - Noise emitted by machinery and equipment - Determination of emission sound pressure levels at a work station and at other specified positions in an essentially free field over a reflecting plane with negligible environmental corrections (ISO 1

声学 声学环境鉴定测试方法 第1部分：自由场环境鉴定 (ISO 26101-1:2021) 草案

Draft Document - Acoustics - Test methods for the qualification of the acoustic environment - Part 1: Qualification of free-field environments (ISO 26101-1:2021); German and English version prEN ISO 26101-1:2021

声学 声学环境鉴定的测试方法 第1部分：自由场环境鉴定（草案）

Test Methods for Acoustic Acoustic Environmental Qualification Part 1: Free Field Environmental Qualification (Draft)

声学 声学环境鉴定的测试方法 第 1 部分：自由场环境鉴定

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

声学 - 声学环境鉴定的测试方法 - 第 1 部分：自由场环境鉴定 (ISO 26101-1:2021)

Acoustics - Test methods for the qualification of the acoustic environment - Part 1: Qualification of free-field environments (ISO 26101-1:2021); German version EN ISO 26101-1:2022

声学 听力测试方法 第2部分：纯音和窄带测试信号的声场测听

Acoustics - Audiometric test methods - Part 2: Sound field audiometry with pure-tone and narrow-band test signals (ISO 8253-2:2009); German version EN ISO 8253-2:2009

无损美利体育登录入口官网 超声检验 探头及其声场的表征

Non-destructivetesting--Ultrasonic inspection--Characterization of search unit and sound field

声学. 表面声散射特性. 第2部分. 自由场中定向扩散系数的测量

Acoustics. Sound-scattering properties of surfaces. Part 2. Measurement of the directional diffusion coefficient in a free field

正常声音等声度曲线

Acoustics-Normal equal-loudness-level contours

声学. 自由场环境合格的试验方法

Acoustics. Test methods for the qualification of free-field environments

确保测量一致性的国家体制.听力测定美利体育官网首页网址的校准用参考零点.自由场与扩散场测听的基准听阈

State system for ensuring the uniformity of measurements. Acoustics. Reference zero for the calibration of audiometric equipment. Part 7. Reference threshold of hearing under free-field and diffuse-field listening conditions

声学. 听力测试方法. 第2部分. 纯音及窄带测试信号声场测听法

Acoustics. Audiometric test methods. Part 2. Sound field audiometry with pure-tone and narrow-band test signals

声学 声学环境鉴定测试方法 第1部分：自由场环境鉴定

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

声学. 自由场环境资格证明试验方法. 第1部分: 自由场环境的鉴定

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

声学 校准测听美利体育官网首页网址的基准零级 第7部分:自由场和扩散场测听的基准听阈

Acoustics - Reference zero for the calibration of audiometric equipment - Part 7: Reference threshold of hearing under free-field and diffuse-field listening conditions

声学.听力测试方法.第2部分:纯音和窄带试验信号声场测听方法

Acoustics - Audiometric test methods - Part 2: Sound field audiometry with pure-tone and narrow-band test signals

消声室和半消声室声学特性校准规范

Calibration Specification for Acoustic Performance of Anechoic Rooms and Hemi-anechoic Rooms

声学 校准听力美利体育官网首页网址的参考零点 第7部分：自由场和扩散场听音条件下的听力参考阈值

Acoustics - Reference zero for the calibration of audiometric equipment - Part 7: Reference threshold of hearing under free-field and diffuse-field listening conditions (ISO 389-7:2005)

声学 听力测试方法 第2部分:纯音和窄带测试信号的声场听力测定（ISO 8253-2:1992）

Acoustics - Audiometric test methods - Part 2: Sound field audiometry with pure tone and narrow-band test signals (ISO 8253-2:1992)

声学 听力测试方法 第2部分：纯音和窄带测试信号的声场听力测定

Acoustics - Audiometric test methods - Part 2: Sound field audiometry with pure tone and narrow band test signals

声学 声学环境鉴定的测试方法 第1部分：自由场环境鉴定

Acoustics - Test methods for the qualification of the acoustic environment - Part 1: Qualification of free-field environments (ISO 26101-1:2021)