ASTM D5640
Standard Guide for Selection of Weirs and Flumes for Open-Channel Flow Measurement of Water
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- Language: English
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- Language: English
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About This Item
ASTM D5640 is the standard guide for selecting weirs and flumes for open-channel flow measurement of water. It helps users choose appropriate flow-measuring devices for water systems where channel conditions, installation constraints, and measurement goals must be considered together. By offering guidance for selection rather than a single device design, ASTM D5640 supports more consistent planning, better application fit, and more reliable flow measurement results in practical water-handling settings.
Purpose of ASTM D5640
The purpose of ASTM D5640 is to guide users in selecting between weirs and flumes for open-channel water flow measurement. It is intended to support informed device choice based on the measuring situation, helping align the method with the channel layout and operating conditions. This standard is especially useful when the goal is to match a flow-measuring device to the application rather than to define a single performance requirement. ASTM D5640 can help reduce guesswork during engineering and procurement decisions.
Common use cases of ASTM D5640
ASTM D5640 is commonly used when planning water flow measurement in open channels, such as channels where a weir or flume may be installed to estimate flow. It is relevant during design, retrofit, and equipment selection work for water conveyance and monitoring setups. The guide may also support engineers, operators, and buyers who need to compare device options before installation. In these workflows, the standard helps clarify which type of measurement structure may be better suited to the site and measurement objective.
Why ASTM D5640 matters
This standard matters because the wrong choice of flow-measuring structure can affect measurement consistency, maintenance needs, and confidence in reported water flow data. ASTM D5640 supports more disciplined selection, which can improve compliance efforts, quality control, and overall system planning. For organizations that rely on open-channel flow data, the guide can help reduce selection errors and support better technical alignment between the measurement device and the intended use. ASTM D5640 is a practical reference for making that choice with greater confidence.
- Selection guidance for weirs and flumes
- Open-channel water flow measurement
- Application-focused device comparison
- Supports engineering and procurement decisions
- Useful for planning and retrofit projects
- Publication Date: 2025-06-24
- Publisher: ASTM
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