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

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

DIN EN ISO 748-2008 发布历史

This International Standard specifies methods for determining the velocity and cross-sectional area of water flowing 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 that although, in some cases, these measurements are intended to determine the stage-discharge relation of a gauging station, this International Standard deals only with single measurements of the discharge; the continuous 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 ice cover are specified in ISO 9196.

DIN EN ISO 748-2008由德国标准化学会 DE-DIN 发布于 2008-02。

DIN EN ISO 748-2008 在中国标准分类中归属于: A42 物理学与力学，在国际标准分类中归属于: 17.120.20 明渠中流量的测量。

DIN EN ISO 748-2008 发布之时，引用了标准

• ISO 772 水文测验.词汇和符号*， 2022-02-28 更新
• ISO 1088 液体比重测定法.使用测流计的速度面积法.流量测量中不确定度测定用数据收集和处理
• ISO 2537 液体比重测定法.转子式流速计
• ISO 3455 液体比重测定法. 敞口直立水箱中流速计校准*， 2020-12-31 更新
• ISO/TS 15768 明渠水流流速的测量 电磁流速仪的设计、选择和使用

* 在 DIN EN ISO 748-2008 发布之后有更新，请注意新发布标准的变化。

DIN EN ISO 748-2008的历代版本如下：

• 2008年02月 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

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标准号

DIN EN ISO 748-2008

发布日期

2008年02月

实施日期

废止日期

无

中国标准分类号

A42

国际标准分类号

17.120.20

发布单位

DE-DIN

引用标准

ISO 772 ISO 1088 ISO 2537 ISO 3455 ISO/TS 15768

被代替标准

DIN EN ISO 748-2000 DIN EN ISO 748-2005

适用范围

This International Standard specifies methods for determining the velocity and cross-sectional area of water flowing 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 that although, in some cases, these measurements are intended to determine the stage-discharge relation of a gauging station, this International Standard deals only with single measurements of the discharge; the continuous 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 ice cover are specified in ISO 9196.

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