标题: DIN EN ISO 748-2008 液体比重测定法.用测流计或浮子测量明渠中液体流量 [打印本页] 作者: sigh007 时间: 2012-3-22 18:22:54 标题: DIN EN ISO 748-2008 液体比重测定法.用测流计或浮子测量明渠中液体流量
【英文标准名称】: Hydrometry - Measurement of liquid flow in open channels using current-meters or floats (ISO 748:2007); English version of DIN EN ISO 748:2008-02 【原文标准名称】: 液体比重测定法.用测流计或浮子测量明渠中液体流量 【标准号】: DIN EN ISO 748-2008 【标准状态】: 现行 【国别】: 德国 【发布日期】: 2008-02 【实施或试行日期】: 【发布单位】: 德国标准化学会(DE-DIN)【起草单位】: 【标准类型】: ()【标准水平】: ()【中文主题词】: 横截面积;浮子;流量测量;流量率;液体比重测定法;液体流动;数学计算;测量;测量仪器;测量点;明渠;流水;沾污试验;溪;表面;速度测量;流速;水流;水常规【英文主题词】: Cross-sectional area;Floats;Flow measurement;Flow measurements;Flow rate;Hydrometry;Liquid flow;Mathematical calculations;Measurement;Measuring instruments;Measuring points;Open channels;Running waters;Stain tests;Streams;Surfaces;Velocity measurement;Velocity of flow;Water flows;Water practice【摘要】: This International Standard specifies methods for determining the velocity and cross-sectional area of waterflowing in open channels without ice cover, and for computing the discharge therefrom.It covers methods of employing current-meters or floats to measure the velocities. It should be noted thatalthough, in some cases, these measurements are intended to determine the stage-discharge relation of agauging station, this International Standard deals only with single measurements of the discharge; thecontinuous recording of discharges over a period of time is covered in ISO 1100-1 and ISO 1100-2.NOTE The methods for determining the velocity and cross-sectional area of water flowing in open channels with icecover are specified in ISO 9196.【中国标准分类号】: A42【国际标准分类号】: 17_120_20【页数】: 52P.;A4【正文语种】: 英语 作者: lwd2325 时间: 2018-2-10 15:54:33