17.120.20 明渠中流量的测量 标准查询与下载

BS ISO 3454:2008 液体比重测定法.直接测深和悬挂设备

This International Standard specifies the functional requirements of the equipment, excluding bankside cableway systems, used in the measurement of liquid flow in open channels for a) sounding (by direct method), and b) suspending the measuring equipment (for example, current-meter or sediment sampler) at the point of measurement.

Hydrometry - Direct depth sounding and suspension equipment

BS ISO 1438:2008 液体比重测定法.使用薄壁堰的明渠流量测量

This International Standard defines the requirements for the use of rectangular and triangular (V-notch) thinplate weirs for the measurement of flow of clear water in open channels under free flow conditions. It includes the requirements for the use of full-width rectangular thin-plate weirs in submerged (drowned) flow conditions.

Hydrometry - Open channel flow measurement using thin-plate weirs

BS ISO 4359:2008 流量测量 矩形、梯形和U形水槽

Liquid flow measurement in open channels. Rectangular, trapezoidal and U-shaped flumes

ISO 3454:2008 液体比重测定法.直接测深和悬挂设备

This International Standard specifies the functional requirements of the equipment, excluding bankside cableway systems, used in the measurement of liquid flow in open channels for a) sounding (by direct method), and b) suspending the measuring equipment (for example, current-meter or sediment sampler) at the point of measurement.

Hydrometry - Direct depth sounding and suspension equipment

BS ISO 3846:2008 液体比重测定法.用矩形宽顶堰的明渠流量测量

This International Standard lays down requirements for the use of rectangular broad-crested weirs for the accurate measurement of flow of clear water in open channels under free flow conditions.

Hydrometry - Open channel flow measurement using rectangular broad-crested weirs

BS ISO 4360:2008 液体比重测定法.使用三角形剖面堰的明渠流量的测量

ISO 4360:2008 specifies methods for the measurement of the flow of water in open channels under steady flow conditions using triangular profile weirs. The flow conditions considered are steady flows which are uniquely dependent on the upstream head and drowned flows which depend on downstream as well as upstream levels.

Hydrometry - Open channel flow measurement using triangular profile weirs

ISO 4360:2008 液体比重测定法.使用三角形剖面堰的明渠流量的测量

ISO 4360:2008 specifies methods for the measurement of the flow of water in open channels under steady flow conditions using triangular profile weirs. The flow conditions considered are steady flows which are uniquely dependent on the upstream head and drowned flows which depend on downstream as well as upstream levels.

Hydrometry - Open channel flow measurement using triangular profile weirs

ISO 3846:2008 液体比重测定法.用矩形宽顶堰的明渠流量测量

This International Standard lays down requirements for the use of rectangular broad-crested weirs for the accurate measurement of flow of clear water in open channels under free flow conditions.

Hydrometry - Open channel flow measurement using rectangular broad-crested weirs

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

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.

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

LST EN ISO 748:2008 水文测量法 使用流量计或浮子测量明渠中的液体流量（ISO 748:2007）

Hydrometry - Measurement of liquid flow in open channels using current-meters or floats (ISO 748:2007)

DS/EN ISO 748:2008 水文测量法 使用流量计或浮子测量明渠中的液体流量

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-sec

Hydrometry - Measurement of liquid flow in open channels using current-meters or floats

DS/CEN ISO/TS 25377:2008 水文测量不确定性指南（HUG）

This document proposes a framework for the drafting of technical Standards in the field of hydrometry. It follows the rules set out in ISO 'Guide to the expression of uncertainty in measurement' (GUM) and will assist users in applying the GUM.

Hydrometric uncertainty guidance (HUG)

EN ISO 4373:2008 液体比重测定法.水位测量装置

This International Standard specifies the functional requirements of instrumentation for measuring the level ofwater surface (stage), primarily for the purpose of determining flow rates.This International Standard issupplemented by an annex providing guidance on the types of water level measurement devices currentlyavailable and the measurement uncertainty associated with them (see Annex A).

Hydrometry - Water level measuring devices (ISO 4373:2008)

BS EN ISO 748:2007 液体比重测定法.用测流计或浮子测量明渠中液体流量

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.

Hydrometry - Measurement of liquid flow in open channels using current-meters or floats

BS DD CEN ISO/TS 25377:2007 液体比重测定不确定度的指南

This Technical Specification provides an understanding of the nature of measurement uncertainty and its significance in estimating the ‘quality’ of a measurement or a determination in hydrometry. It is applicable to flow measurements in natural and man-made channels. Rainfall measurements are not covered.

Hydrometric uncertainty guide

EN ISO/TS 25377:2007 呼吸保护装置.人的因素.第1部分:代谢率和呼吸流速

Respiratory protective devices - Human factors - Part 1: Metabolic rates and respiratory flow rates

ISO/TS 25377:2007 液体比重测定不确定度的指南(HUG)

This Technical Specification provides an understanding of the nature of measurement uncertainty and its significance in estimating the ‘quality’ of a measurement or a determination in hydrometry. It is applicable to flow measurements in natural and man-made channels. Rainfall measurements are not covered.

Hydrometric uncertainty guidance (HUG)

ISO 748:2007 液体比重测定法 用测流计或浮子测量明渠中的液体流量

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.

Hydrometry - Measurement of liquid flow in open channels using current-meters or floats

BS ISO 1088:2007 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

This International Standard provides a standard basis for the collection and processing of data for the determination of the uncertainties in measurements of discharge in open channels by velocity-area methods using current-meters. To determine the discharge in open channels by the velocity-area method, components of the flow (velocity, depth and breadth) need to be measured. The component measurements are combined to compute the total discharge. The total uncertainty in the computed discharge is a combination of the uncertainties in the measured components. Clause 4 of this International Standard deals with the types of errors and uncertainties involved. Clauses 5 and 6 present a standard procedure to estimate the component uncertainties by the collection and processing of the necessary data. This International Standard is intended to be applied to velocity-area methods that involve measurement of point velocities at a relatively small number of discrete depths and transverse positions in the flow crosssection, as described in ISO 748. This International Standard is not intended to be applied to measurements made by Acoustic Doppler Velocity Profilers (ADVP) or other instruments that produce essentially continuous velocity profiles of the flow field.

Hydrometry. Velocity-area methods using current-meters. Collection and processing of data for determination of uncertainties in flow measurement

ISO 1088:2007 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

This International Standard provides a standard basis for the collection and processing of data for the determination of the uncertainties in measurements of discharge in open channels by velocity-area methods using current-meters. To determine the discharge in open channels by the velocity-area method, components of the flow (velocity, depth and breadth) need to be measured. The component measurements are combined to compute the total discharge. The total uncertainty in the computed discharge is a combination of the uncertainties in the measured components. Clause 4 of this International Standard deals with the types of errors and uncertainties involved. Clauses 5 and 6 present a standard procedure to estimate the component uncertainties by the collection and processing of the necessary data. This International Standard is intended to be applied to velocity-area methods that involve measurement of point velocities at a relatively small number of discrete depths and transverse positions in the flow crosssection, as described in ISO 748. This International Standard is not intended to be applied to measurements made by Acoustic Doppler Velocity Profilers (ADVP) or other instruments that produce essentially continuous velocity profiles of the flow field.

Hydrometry - Velocity-area methods using current-meters - Collection and processing of data for determination of uncertainties in flow measurement