17.120.20 明渠中流量的测量 标准查询与下载

ISO 18481:2017 自由溢流渠道末端深度法水文液体流量测量

This document specifies a method for the estimation of the sub-critical flow of clear water in a smooth, essentially horizontal channel (or a gently sloping channel), abruptly discontinued at bottom by a hydraulic structure, with a vertical drop and discharging freely. Such an overfall forms a control section and offers a means for the estimation of flow using the end depth measurement method. A wide variety of channel cross-sections with overfall have been studied, but only those which have received general acceptance after adequate research and testing, and therefore do not require in situ calibration, are considered. This document covers channels with the following types of cross-sections: a) rectangular with confined and unconfined nappe; c) triangular; e) parabolic. b) trapezoidal; d) circular; The flow at the brink is curvilinear; therefore, the measured depth at the drop is not equal to the critical depth as computed by the principle based on assumption of parallel flow. However, the end depth and the critical depth (as in the case of the assumption of parallel flow) have unique relation, which is used to estimate the flow through these structures.

Hydrometry - Liquid flow measurement using end depth method in channels with a free overfall

BS ISO 9123:2017 水文测量.水位、落差和流量的关系

Hydrometry. Stage-fall-discharge relationships

EN ISO 6416:2017 水文测量.超声波(声波)法测量流量

Hydrometry - Measurement of discharge by the ultrasonic transit time (time of flight) method

ISO/TR 9210:2017 水文测验.弯曲河流和水流边界不稳定河流的流量测验

Hydrometry - Measurement in meandering river and in streams with unstable boundaries

ISO 6416:2017 水文测量. 用超声波渡越时间(飞行时间)法测量流量

Hydrometry - Measurement of discharge by the ultrasonic transit time (time of flight) method

GSO ISO/TR 19234:2017 水文测量 低成本挡板解决方案 帮助鱼通过符合 ISO 4360 的三角形堰

This document specifies the requirements for the integration of baffles on the downstream face of triangular profile flow measurement structures to aid the passage of fish.

Hydrometry -- Low cost baffle solution to aid fish passage at triangular profile weirs that conform to ISO 4360

ISO 9123:2017 水文测量.水位、落差、流量的关系

This document specifies methods for determining stage-fall-discharge relationships for a stream reach where variable backwater occurs either intermittently or continuously. Two gauging stations, a base reference gauge and an auxiliary gauge are required for gauge height measurements. A number of discharge measurements are required in order to calibrate the rating to the accuracy required by this document. The preparation of rating curves is not described in detail in this document. NOTE For a more detailed description of preparing rating curves, see the methods described in ISO 1100-2.

Hydrometry - Stage-fall-discharge relationships

BS ISO 1438:2017 水文测量 使用薄板堰进行明渠流量测量

Hydrometry. Open channel flow measurement using thin-plate weirs

ISO 4359:2013/Amd 1:2017 明渠水流测量.矩形、梯形和U形测流槽.修改件1

Flow measurement structures - Rectangular, trapezoidal and U-shaped flumes; Amendment 1

ISO 1438:2017 液体比重测定法.用薄板堰法的明渠流量测量

This document defines the requirements for the use of rectangular and triangular (V-notch) thin-plate 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 PD ISO/TR 19234:2016 水文测量. 符合ISO 4360的三角断面溢流堰上鱼类通道低成本阻隔解决方案

Hydrometry. Low cost baffle solution to aid fish passage at triangular profile weirs that conform to ISO 4360

GSO ISO 9827:2016 堰槽测量明渠液体流量 流线型三角形堰

his International Standard specifies methods for the measurement of the flow of water in open channels under steady flow conditions using streamlined triangular profile weirs. The flow conditions considered are free flow, which is dependent on the upstream head only, and drowned flow, which depends on both upstream and downstream water levels.

Measurement of liquid flow in open channels by weirs and flumes -- Streamlined triangular profile weirs

ISO/TR 19234:2016 水文测量. 符合ISO 4360的三角断面溢流堰上鱼类通道低成本阻隔解决方案

Hydrometry - Low cost baffle solution to aid fish passage at triangular profile weirs that conform to ISO 4360

BS ISO 6420:2016 水文测量 水文测量船定位设备

Hydrometry. Position fixing equipment for hydrometric boats

ISO 6420:2016 水文测量.水文测船定位设备

Hydrometry - Position fixing equipment for hydrometric boats

BS ISO 24155:2016 水文测量. 水文测量数据传输系统. 系统要求规格

Hydrometry. Hydrometric data transmission systems. Specification of system requirements

ISO 24155:2016 水文测量. 液体比重测定数据传输系统. 系统规格要求

Hydrometry - Hydrometric data transmission systems - Specification of system requirements

KS B ISO 2425-2015 潮汐条件下开放通道液体流量测量

Measurement of liquid flow in open channels under tidal conditions

KS B ISO 1100-2:2015 液体比重测定法 明渠水流量测量 第2部分：水位流量关系的确定

Measurement of liquid flow in open channels-Part 2:Determination of the stage-discharge relation

KS B ISO 3846-2015 堰和水槽开放通道中的液体流量测量 - 矩形宽堰堰

Liquid flow measurement in open channels by weirs and flumes — Rectangular broad-crested weirs