Browse Standards

铁道客车内部噪声限值及测量方法

The limiting value and measurement method for the interior noise in the railway passenger coach

电子水平仪

Electronic level meter

电子数显外径千分尺

External micrometer with electronic digital display

旋转机械转轴径向振动的测量和评定 第2部分: 50MW以上,额定转速1500r/min、1800r/min、3000r/min、3600r/min陆地安装的汽轮机和发电机

Mechanical vibration - Evaluation of machines vibration by measurements on rotating shafts - Part 2：Land-based steam turbines and generators in excess of 50MW with normal operating speeds of 1500r/min, 1800r/min, 3000r/min and 3600r/min

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,额定转速1500r/min、1800r/min、3000r/min、3600r/min陆地安装的汽轮机和发电机

Mechanical vibration - Evaluation of machine vibration by measurements on non-rotating parts - Part 2: Land-based steam turbines and generators in excess of 50MW with normal operating speeds of1500r/min，1800r/min，3000r/min and 3600r/min

声学 校准测听设备的基准零级 第8部分：耳罩式耳机纯音基准等效阈声压级

Acoustics - Reference zero for the calibration of audiometric equipment - Part 8: Reference equivalent threshold sound pressure levels for pure tone and circumaural earphones

声学 办公室和车间内声屏障控制噪声的指南

Acoustics - Guidelines for noise control in offices and workrooms by means of acoustical screens

声学 工作环境中噪声暴露的测量与评价导则

Acoustics - Guidelines for the measurement and assessment of exposure to noise in a working environment

指示表

Dial gauges

表面粗糙度比较样块 第3部分：电火花、抛（喷）丸、喷砂、研磨、锉、抛光加工表面

Surface roughness comparison specimen － Part 3：Spark-eroded，shot-blasted，grit-blasted，lapped，filed and polished surface

振动与冲击传感器校准方法 第12部分：互易法振动绝对校准

Methods for the calibration of vibration and shock transducers - Part 12: Primary vibration calibration by the reciprocity method

产品几何技术规范（GPS） 几何公差 形状、方向、位置和跳动公差标注

Geometrical Product Specifications(GPS) - Geometrical tolerancing - Tolerances of form,orientation,location and run-out

电工术语 电工电子测量和仪器仪表 第3部分：电测量仪器仪表的类型

Electrotechnical terminology - Electrical and electronic measurements and measuring instruments - Part 3：Types of electrical measuring instruments

电工术语 电工电子测量和仪器仪表 第1部分：测量的通用术语

Electrotechnical terminology - Electrical and electronic measurements and measuring instruments - Part 1: General terms relating to measurements

齿轮测量中心

Gear measuring center

铸铁平板

Cast iron surface plates

标准照明体和几何条件

Standard illuminants and geometric conditions

交流电测量设备 特殊要求 第23部分：静止式无功电能表（2级和3级）

Electricity metering equipment (a.c.) - Particular requirements - Part 23: Static meters for reactive energy (classes 2 and 3)

交流电测量设备 特殊要求 第22部分：静止式有功电能表（0.2S级和0.5S级）

Electricity metering equipment (a.c.) - Particular requirements - Part 22: Static meters for active energy (classes 0,2 S and 0,5 S)

交流电测量设备 特殊要求 第21部分：静止式有功电能表（1级和2级）

Electricity metering equipment (a.c.) - Particular requirements - Part 21: Static meters for active energy (classes 1 and 2)