Browse Standards

电子吊秤通用技术规范

General technical specification for electronic crane and hanging scale

固定式电子衡器

Fixed location electronic weighing instrument

声学 声压法测定噪声源声功率级和声能量级 混响场内小型可移动声源工程法 硬壁测试室比较法

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—Comparison method for a hard-walled test room

声学 水听器低频校准方法

Acoustics—Low frequency calibration methods of hydrophones

产品几何技术规范（GPS） 坐标测量机的检测不确定度评估指南

Geometrical product specifications (GPS)—Guidelines for the evaluation of coordinate measuring machine (CMM) test uncertainty

动态（矿用）轻轨衡

Weighing instruments for mining car in motion

声学 环境噪声评价中脉冲声事件暴露声级分布的计算方法

Acoustics—Framework for calculating a distribution of sound exposure levels for impulsive sound events for the purposes of environmental noise assessment

纳米技术 贵金属纳米颗粒电子显微镜成像 高角环形暗场法

Nanotechnologies—Electron microscopy imaging of noble metal nanoparticles—High angle annular dark field imaging method

声学 自由场环境评定测试方法

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

电声学 助听器 第8部分：模拟实际工作条件下的助听器性能测量方法

Electroacoustics—Hearing aids—Part 8: Methods of measurement of performance characteristics of hearing aids under simulated in situ working conditions

电声学 助听器 第6部分：助听器输入电路的特性

Electroacoustic—Hearing aids—Part 6: Characteristics of electrical input circuits for hearing aids

声学与振动 弹性元件振动-声传递特性实验室测量方法 第5部分：弹性支撑件低频平动动刚度的驱动点测量方法

Acoustics and vibration—Laboratory measurement of vibro-acoustic transfer properties of resilient elements—Part 5: Driving point method for determination of the low-frequency transfer stiffness of resilient supports for translatory motion

声学与振动 弹性元件振动-声传递特性实验室测量方法 第4部分：弹性非支撑件平动动刚度

Acoustics and vibration―Laboratory measurement of vibro-acoustic transfer properties of resilient elements―Part 4: Dynamic stiffness of elements other than resilient supports for translatory motion

电声学 测量传声器 第6部分：用于测定频率响应的静电激励器

Electroacoustics—Measurement microphones—Part 6: Electrostatic actuators for determination of frequency response

声学 噪声性听力损失的评估

Acoustics—Estimation of noise-induced hearing loss

声系统设备 第16部分：通过语音传输指数客观评价言语可懂度

Sound system equipment—Part 16: Objective rating of speech intelligibility by speech transmission index

连续累计自动衡器（皮带秤）

Continuous totalizing automatic weighing instruments(belt weighers)

铸件 尺寸公差、几何公差与机械加工余量

Castings—Dimensional tolerances and geometrical tolerances and machining allowances

家用和类似用途电器噪声测试方法 通用要求

Test method for noise of household and similar electrical appliances—General requirements

声学 声压法测定噪声源声功率级和声能量级 采用反射面上方包络测量面的简易法

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