What is ISO 14139 - Flow measurements of compound gauging structures?
ISO 14139 is an international standard that discusses flow measurements in open channels using structures.
ISO 14139 specifies the methods of measurement of flow in rivers and artificial channels, using any combination of standard weirs and/or flumes in a compound structure. All structures can be operated in the modular flow range, but only a limited number of structures can be used in the drowned (non-modular) flow range. Compound weirs improve the quality of discharge measurements at low stages.
ISO 14139 describes the characteristics of velocity distribution. ISO 14139 describes structures standardized for operation in the drowned (non-modular) flow range and the method of computation of flow. ISO 14139 describes methods and examples of flow measurement calculations.
Note: Compound flow-measuring structures without divide piers need in situ or model calibrations and are not covered by ISO 14139.
Who is ISO 14139 - Flow measurements of compound gauging structures for?
ISO 14139 on flow measurements of compound gauging structures is relevant to:
- Hydrologists
- Manufacturers of flow meters
- Testing authorities
Why should you use ISO 14139 - Flow measurements of compound gauging structures?
A compound gauging structure comprises two or more individual structures, operated in parallel and separated by divided piers.
ISO 14139 discusses terms, definitions and symbols that depict a user-friendly idea of compound gauging structures. ISO 14139 helps users with the installation of compound gauging structures. ISO 1413 mentions the features that determine the distribution and direction of velocity contributing to the performance characteristics of a weir.
Overall, ISO 14139 is useful as assists with the flow measurement in open channels using structures that can be beneficial for your business.
