Browse Standards

声学 声压法测定噪声源声功率级 混响场中小型可移动声源工程法 第1部分:硬壁测试室比较法

Acoustics--Determination of sound power levels of noise sources--Engineering methods for small，movable sources in reverberant field--Part 1:Comparison method for hard-walled test rooms

声学 信息技术设备和通信设备噪声发射值的标示

Acoustics--Declared noiseemission values of information technology and telecommunications equipment

声学 汽车车内噪声测量方法

Acoustics--Measurement of noise inside motor vehicles

声学 阻抗管中吸声系数和声阻抗的测量 第2部分:传递函数法

Acoustics--Determination of sound absorption coefficient and impedance in impedance tubes--Part 2:Transfer function method

在非旋转部件上测量和评价机器的机械振动 第5部分:水力发电厂和泵站机组

Mechanical vibration--Evaluation of machine vibration by measurements on non-rotating parts--Part 5:Machine sets in hydraulic power generating and pumping plants

在非旋转部件上测量和评价机器的机械振动 第2部分:50MW以上陆地安装的大型汽轮发电机组

Mechanical vibration--Evaluation of machine vibration by measurements on non-rotating parts--Part 2:Large land-based steam turbine generator setsin excess of 50MW

产品几何量技术规范(GPS) 工件与测量设备的测量检验 第1部分:按规范检验合格或不合格的判定规则

Geometrical product specifications (GPS)--Inspection by measurement of workpieces and measuring equipment--Part 1:Decision rules for proving conformance or non-conformance with specifications

公差尺寸 英寸和毫米的互换算

Tolerance dimensions--Conversion form inches into millimetres and vice versa

产品几何量技术规范(GPS) 表面缺陷 术语、定义及参数

Geometrical product specifications(GPS)--Surface imperfections--Terms，definitions and parameters

产品几何量技术规范(GPS) 表面结构 轮廓法 相位修正滤波器的计量特性

Geometrical product specifications (GPS)--Surface texture:Profile method--Metrological characteristics of phase correct filters

转子式流速仪

Rotating current meter

稀土氧化物的电子探针定量分析方法

Quantitative analysis of rare earth element(REE)oxides by electron probe microanalysis(EPMA)

极限与配合 尺寸至18 mm孔、轴公差带

Limits and fits--Tolerance zones for holes and shafts size up to 18mm

产品几何量技术规范(GPS) 坐标测量机的验收检测和复检检测 第4部分: 在扫描模式下使用的坐标测量机

Geometrical Product Specifications(GPS)--Acceptance andreverification tests for coordinate measuring machines(CMM)--Part 4: CMMs used in scanning measuring mode

产品几何量技术规范(GPS) 几何公差 位置度公差注法

Geometrical Product Specifications(GPS)--Geometrical tolerancing--Positional tolerancing

尖头千分尺

Pointed-contact micrometer with conical tips

产品几何量技术规范(GPS) 表面结构 轮廓法 表面粗糙度 术语 参数测量

Geometrical Product Specifications(GPS)--Surface texture:Profile method--Surfaceroughness--Terminology--Measurement of surface roughness parameters

尺寸链 计算方法

Dimensional chain--Methods of calculation

极限与配合 过盈配合的计算和选用

Limits and fits--The calculation and selection of interference fits

机械振动与冲击 加速度计的机械安装

Mechanical vibration and shock-Mechanical mounting of accelerometers