Browse Standards

直接作用模拟指示电测量仪表及其附件 第1部分:定义和通用要求

Direct acting indicating analogue electrical measuring instruments and their accessories--Part 1:Definition and general requirements common to all parts

交流电量转换为模拟量或数字信号的电测量变送器

Electrical measuring transducers for converting a.c. electrical quantities to analogue or digital singals

直接作用模拟指示电测量仪表及其附件 第6部分:电阻表(阻抗表)和电导表的特殊要求

Direct acting indicating analogue electrical measuring instruments and their accessories--Part 6:Special requirements for ohmmeters(impedance meters) and conductance meters

直接作用模拟指示电测量仪表及其附件 第7部分:多功能仪表的特殊要求

Direct acting indicating analogue electrical measuring instruments and their accessories--Part 7:Special requirements for multi-function instruments

1级和2级直接接入静止式交流有功电度表验收检验

Acceptance inspection fordirect connected alternating current static watt-hour meters for active energy (classes 1 and 2)

交流电度表符号

Symbols for alternating-current electricity meters

极限与配合 基础 第2部分:公差、偏差和配合的基本规定

Limits and fits--Bases--Part 2:Basic rules of tolerances，deviations and fits

极限与配合 基础 第3部分:标准公差和基本偏差数值表

Limits and fits--Bases--Part 3:Numerical values tables of standard tolerances and fundamental deviations

产品几何技术规范 表面结构 轮廓法评定表面结构的规则和方法

GeometricalProduct Specifications(GPS)--Surface texture:Profile method--Rules and procedures for the assessment of surface texture

可程控测量设备标准数字接口的标准代码、格式、协议和公共命令

Standard codes，formats，protocals and common commands for use with standard digital interface for programmable instrumentation

用称重法测量封闭管道中的液体流量 装置的检验程序 第1部分:静态称重系统

Measurement of liquid flow in closed conduits by weighing method--Procedures for checking installations--Part 1:Static weighing systems

封闭管道中液体流量的测量 称重法

Measurement of liquid flow in closed conduits--Weighing method

封闭管道中流体流量的测量 术语和符号

Measurement of fluid flow in closed conduits--Vocabulary and symbols

声学 机器和设备发射的噪声 工作位置和其他指定位置发射声压级的测量 环境修正法

Acoustics--Noise emitted by machinery and equipment--Measurement of emission sound pressure levels at a work station and at other specified positions--Method requiring environmental corrections

声学 机器和设备发射的噪声 工作位置和其他指定位置发射声压级的测量 现场简易法

Acoustics--Noise emitted by machinery and equipment--Measurement of emission sound pressure levels at a work station and at other specified positions--Survey method in situ

声学 机器和设备发射的噪声 工作位置和其他指定位置发射声压级的测量 一个反射面上方近似自由场的工程法

Acoustics--Noise emitted by machinery and equipment--Measurement of emission sound pressure levels at a work station and at otherspecified positions--Engineering method in an essentially free field over a reflecting plane

声学 声强法测定噪声源的声功率级 第2部分:扫描测量

Acoustics--Determination of sound power levels of noise sources using sound intensity--Part 2:Measurement by scanning

旋转机械转轴径向振动的测量和评定 第1部分:总则

Mechanical vibration ofnon-reciprocating machines--Measurements on rotating shafts and evaluation criteria--Part 1:General guidelines

旋转机械转轴径向振动的测量和评定 第4部分:燃气轮机组

Mechanical vibration of non-reciprocating machines--Measurements on rotating shafts and evaluation criteria--Part 4:Gas turbine sets

旋转机械转轴径向振动的测量和评定 第3部分:耦合的工业机器

Mechanical vibration of non-reciprocating machines--Measurements on rotating shafts and evaluation criteria--Part 3:Coupled industrial machines