BS ISO 18320:2020 - Hydrometry: Measurement of Liquid Flow in Open Channels

Standard Number: BS ISO 18320:2020

Pages: 56

Released: 2020-08-13

ISBN: 978 0 580 98778 6

Status: Standard

Overview

The BS ISO 18320:2020 is a comprehensive standard that provides detailed guidelines for the measurement of liquid flow in open channels. This standard is essential for professionals in the field of hydrometry, offering a systematic approach to determining the stage-discharge relationship, which is crucial for accurate water flow measurement and management.

Key Features

• Comprehensive Coverage: With 56 pages of detailed information, this standard covers all aspects of measuring liquid flow in open channels, ensuring that you have all the necessary data and guidelines at your fingertips.
• Up-to-Date Information: Released on August 13, 2020, this standard reflects the latest advancements and methodologies in the field of hydrometry, ensuring that you are working with the most current information available.
• International Recognition: As an ISO standard, BS ISO 18320:2020 is recognized globally, making it a valuable resource for professionals working in international contexts or with multinational teams.

Importance of Stage-Discharge Relationship

The stage-discharge relationship is a fundamental concept in hydrometry, representing the relationship between the water level (stage) and the volume of water flowing per unit of time (discharge). Understanding this relationship is critical for:

• Flood Management: Accurate stage-discharge data is essential for predicting and managing flood events, helping to protect communities and infrastructure.
• Water Resource Management: Effective management of water resources relies on precise flow measurements to ensure sustainable usage and distribution.
• Environmental Monitoring: Monitoring changes in water flow can provide valuable insights into environmental changes and help in the conservation of aquatic ecosystems.

Who Should Use This Standard?

This standard is designed for a wide range of professionals, including:

• Hydrologists: Professionals who study the movement, distribution, and quality of water on Earth.
• Environmental Engineers: Engineers focused on developing solutions to environmental challenges, including water management.
• Water Resource Managers: Individuals responsible for the planning, development, and management of water resources.
• Researchers and Academics: Those involved in the study and teaching of hydrology and related fields.

Benefits of Using BS ISO 18320:2020

Implementing the guidelines and methodologies outlined in BS ISO 18320:2020 offers numerous benefits, including:

• Improved Accuracy: By following standardized procedures, you can achieve more accurate and reliable flow measurements.
• Consistency: Standardization ensures that measurements are consistent across different locations and times, facilitating better data comparison and analysis.
• Enhanced Decision-Making: Reliable data supports informed decision-making in water management, policy development, and environmental protection.

Conclusion

The BS ISO 18320:2020 standard is an indispensable tool for anyone involved in the measurement and management of liquid flow in open channels. Its comprehensive guidelines and international recognition make it a valuable resource for ensuring accurate, consistent, and reliable hydrometric data. Whether you are a hydrologist, engineer, or researcher, this standard will enhance your work and contribute to the effective management of water resources.

BS ISO 18320:2020

This standard BS ISO 18320:2020 Hydrometry. Measurement of liquid flow in open channels. Determination of the stage-discharge relationship is classified in these ICS categories:

• 17.120.20 Flow in open channels

This document specifies methods of determining the stage–d ischarge relationship for gauging stations. It specifies an accuracy for defining the stage–discharge relationship based on a sufficient number of discharge measurements, complete with corresponding stage measurements.

This document considers stable and unstable channels and includes brief descriptions of the effects on the stage–discharge relationship of the transition from inbank to overbank flows, shifting controls, variable backwater and hysteresis. Methods of determining discharge for twin-gauge stations, ultrasonic velocity-measurement stations and other complex rating curves are not described in detail.