Browse Standards
1496+ standards in database
1496 result(s) found
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
产品几何技术规范(GPS) 表面结构 区域法 第2部分:术语、定义及表面结构参数
Geometrical product specifications (GPS)—Surface texture:Areal—Part 2: Terms, definitions and surface texture parameters
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
产品几何技术规范(GPS) 几何公差 检测与验证
Geometrical Product Specifications(GPS)—Geometrical tolerance—Verification
产品几何技术规范(GPS) 坐标测量机的验收检测和复检检测 第5部分:使用单探针或多探针接触式探测系统的坐标测量机
Geometrical product specifications(GPS)—Acceptance and reverification tests for coordinate measuring machines (CMM)—Part 5:CMMs using single or multiple stylus contacting probing systems
产品几何技术规范(GPS) 坐标测量机的验收检测和复检检测 第2部分: 用于测量线性尺寸的坐标测量机
Geometrical product specifications (GPS)—Acceptance and reverification tests for coordinate measuring machines (CMM)—Part 2: CMMs used for measuring linear dimensions
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
短路电流效应计算 第1部分:定义和计算方法
Calculation of effects of short-circuit currents—Part 1: Definitions and calculation methods
液体材料微波频段使用开口同轴探头的电磁参数测量方法
Measuring method for electromagnetic parameters of liquid materials at microwave frequencies using an open-ended coaxial probe
电磁屏蔽用全方位导电海绵通用技术要求
General technical requirements for electromagnetic shielding all-round conductive foam