美利体育登录入口官网

螺母，自锁，板，双凸耳，低高度，钢制，125 KSI Ftu，450°F（修订版 3）

NUT, SELF-LOCKING, PLATE, TWO-LUG, LOW HEIGHT, STEEL, 125 KSI Ftu, 450 °F (Rev 3)

声学．转动电气机械发出的气载噪音的测量．反射平面上自由场条件工程方法

Acoustics - Measurement of airborne noise emitted by rotating electrical machinery - Engineering method for free-field conditions over a reflective plane

声学 听力测试方法 第 2 部分：使用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

水下声学.水听器.0.01 Hz至1 MHz频率范围的校准

Underwater acoustics - Hydrophones - Calibration in the frequency range 0,01 Hz to 1 MHz

高压开关美利体育官网首页网址和控制美利体育官网首页网址 第37-082部分：交流断路器声压级测量的标准实施规程

High - voltage switchgear and controlgear Part 37 - 082 : Standard practice for the measurement of sound pressure levels on alternating current circuit - breakers

声听学.自由场测听条件下年龄在18-25岁范围内耳科正常的人听阀的统计分布

Acoustics. Statistical distribution of hearing thresholds of otologically normal persons in the age range from 18 years to 25 years under free-field listening conditions

建筑物振动.第1部分:振动参数预测

Vibrations in buildings - Part 1: Prediction of vibration parameters

音响系统美利体育官网首页网址.第5部分:扬声器(IEC 60268-5-2003+A1-2007).德文版本EN 60268-5-2003+A1-2009

Sound system equipment - Part 5: Loudspeakers (IEC 60268-5:2003 + A1:2007); German version EN 60268-5:2003 + A1:2009

音响系统美利体育官网首页网址 第5部分：扬声器

Sound system equipment - Part 5: Loudspeakers (IEC 60268-5:2003 + A1:2007); German version EN 60268-5:2003 + A1:2009 / Note: DIN EN 60268-5 (2003-12) remains valid alongside this standard until 2012-07-01.

水下声学.水听器.0.01Hz～1MHz频率范围的校准(IEC 60565-2006)

Underwater acoustics - Hydrophones - Calibration in the frequency range 0,01 Hz to 1 MHz (IEC 60565:2006); German version EN 60565:2007

超声波 水听器 第2部分：高达 40 MHz 的超声波场的校准

Ultrasonics - Hydrophones - Part 2: Calibration for ultrasonic fields up to 40 MHz (IEC 62127-2:2007 + Cor.:2008 + A1:2013 + A2:2017); German version EN 62127-2:2007 + A1:2013 + A2:2017 / Note: DIN EN 62127-2 (2013-11) remains valid alongside this stan...

声学 a 机器和美利体育官网首页网址的噪声排放

Acoustics a Noise emissions from machines and devices

声学 确定靠近耳朵的声源的声发射 第2部分：使用人体模型的技术（草案）

Acoustics Determining acoustic emissions from sound sources close to the ear Part 2: Techniques using human models (draft)

声学 使用声压测定噪声源的声功率级和声能级 消声室和半消声室的精密方法

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 (ISO 3745:2012 + Amd 1:2017); German version EN ISO 3745:2012 + A1:2017

声学 听力测量美利体育官网首页网址校准的参考零 第7部分：自由场和扩散场听音条件下的参考听力阈值（ISO 389-7：1996）

Acoustics – Reference zero for the calibration of audiometric equipment – Part 7: Reference threshold of hearing under free-?eld and diffuse-?eld listening conditions (ISO 389-7 : 1996)

声学.测听美利体育官网首页网址校准用的参考零点.第7部分:自由场和扩散场听力条件下的参考听觉阈

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); English version of DIN EN ISO 389-7:2006-04

声学.测听美利体育官网首页网址校准用的参考零点.第7部分:自由场和扩散场听力条件下的参考听觉阈(ISO 389-7-2005+Amd 1-2016);德文版本EN ISO 389-7-2005+A1-2016

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 + Amd 1:2016); German version EN ISO 389-7:2005 + A1:2016

声学.声功率级测定用基准声源性能和校正要求

Acoustics - Requirements for the performance and calibration of reference sound sources used for the determination of sound power levels (ISO 6926:2000); German version EN ISO 6926:2001

声学. 听力试验方法. 第2部分: 纯音和窄频带信号声场测听技术（ISO 8253-2: 2009）; 德文版本EN ISO 8253-2: 2009

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

声学 声音系统美利体育官网首页网址 第4部分: 麦克风

Acoustics Sound system equipment Part 4: Microphones

声学 自由场条件下正常听力阈值的统计分布

Statistical distribution of normal hearing thresholds under acoustic free-field conditions

声学 听力计美利体育官网首页网址校准参考零值 第7部分：自由场及扩散场听力阈值

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

ГСИ.频率范围0.5MHz～15MHz工作的水声计的特性与定度

Characteristics and calibration of hydrophones for operation in the frequency range 0,5 MHz to 15 MHz

扬声器.电声测试的方法

Loudspeakers. Methods of electroacoustic tests

麦克风.电声特性的测量方法

Microphones. Methods of measurement of electroacoustic characteristics

测量一致性确认用国家体系.测量扩音器.用互易技术对实验室标准扩音器进行自由场校准的基本方法

State system for ensuring the uniformity of measurements. Measurement microphones. Primary method for free-field calibration of laboratory standard microphones by the reciprocity technique

国家测量统一性保证体系.水听器.频率最高至40 MHz的校准方法的一般要求

State system for ensuring the uniformity of measurements. Hydrophones. General requirements for calibration methods in the frequency range up 40 MHz

声学. 18至25岁听觉正常人群在自由场听力条件下听阈的统计分布

Acoustics. Statistical distribution of hearing thresholds of otologically normal persons in the age range from 18 years to 25 years under free-field listening conditions

超音波学.水听器.第2部分:超音波场小于40MHz的校准

Ultrasonics - Hydrophones - Part 2: Calibration for ultrasonic fields up to 40 MHz

超音波学.水听器.第2部分:超音波场小于40 MHz的校准

Ultrasonics - Hydrophones - Part 2: Calibration for ultrasonic fields up to 40 MHz

超声波 使用自互易法测量球面弯曲换能器的电声参数和声输出功率

Ultrasonics - Measurements of electroacoustical parameters and acoustic output power of spherically curved transducers using the self-reciprocity method

将头部和躯干模拟器测量值从鼓膜转换为其他声学参考点的 IEEE 标准

IEEE Standard for Translating Head and Torso Simulator Measurements from Eardrum to Other Acoustic Reference Points

将头部和躯干模拟器测量值从鼓膜转换为其他声学参考点的 IEEE 标准

IEEE Standard for Translating Head and Torso Simulator Measurements from Eardrum to Other Acoustic Reference Points

声学.18至25岁听觉正常人群在自由场听力条件下听阈的统计分布

Acoustics - Statistical distribution of hearing thresholds of otologically normal persons in the age range from 18 years to 25 years under free-field listening conditions

声学. 测定声功率级的标准声源性能和校准要求

Acoustics - Requirements for the performance and calibration of reference sound sources used for the determination of sound power levels

道路车辆.电磁场强度测量美利体育官网首页网址的校正.第2部分:9kHz-40GHz的电磁场传感器和探针(不包括天线)的校正用IEEE标准

Road vehicles - Calibration of electromagnetic field strength measuring devices - Part 2: IEEE standard for calibration of electromagnetic field sensors and probes, excluding antennas, from 9 kHz to 40 GHz

电声学.声级测量仪的随机入射和散射区域的校正

Electroacoustics -- Random incidence and diffuse field calibration of sound level meters

声学 听力计校准的参考零值 第7部分：自由场和混浊场听力条件下的听阈参考值（ISO 389-7:2019）

Acoustics - Reference zero for the calibration of audiometric equipment - Part 7: Reference threshold of hearing under free-field and diffuse-field listening conditions (ISO 389-7:2019)

超声波学 水听器 第2部分：超声波场小于40MHz水听器的校准

Ultrasonics - Hydrophones - Part 2 : calibration for ultrasonic fields up to 40 MHz

警报喇叭电性能、试验和应用

Horn Forward Warning Electric Performance, Test, and Application

喇叭 前向警告 电动 性能、测试和应用

Horn - Forward Warning - Electric - Performance, Test, and Application

越野道路施工机械外部测音

Sound Measurement Off-Road Work Machines Exterior

警报备用电气实验室性能试验

Alarm Backup Electric Laboratory Performance Testing

水下声学 声纳 频率为 0.01 Hz 至 1 MHz 范围内的校准（IEC 60565:2006）

Calibration of underwater acoustic sonar frequencies in the range 0.01 Hz to 1 MHz (IEC 60565:2006)