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prEN ISO 4373

Hydrometry - Water level measuring devices (ISO/DIS 4373:2021)

General information
Draft
Base Documents
ISO/DIS 4373; prEN ISO 4373
Directives or regulations
None
Standard history
Status
Date
Type
Name
09.01.2009
Main
This International Standard specifies the functional requirements of instrumentation for measuring the level of water surface (stage), primarily for the purpose of determining flow rates. This International Standard is supplemented by an annex providing guidance on the types of water level measurement devices currently available and the measurement uncertainty associated with them (see Annex A). This standard covers both contact and non-contact methods of measurement. The non-contact methods are not in direct material contact with the water surface but measure the height of the water level with ultrasonic or electromagnetic waves.
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