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).
DIN EN ISO 4373:2009 Referenced Document
IEC 60529 Degrees of Protection Provided by Enclosures (IP Code) (Edition 2.1 ***Applies to French text only***)*, 2024-04-19 Update
ISO 772 Hydrometry — Vocabulary and symbols*, 2022-02-28 Update
DIN EN ISO 4373:2009 history
2022DIN EN ISO 4373:2022-12 Hydrometry - Water level measuring devices (ISO 4373:2022); German version EN ISO 4373:2022
2022DIN EN ISO 4373:2022 Hydrometry - Water level measuring devices (ISO 4373:2022)
2021DIN EN ISO 4373 E:2021 Draft Document - Hydrometry - Water level measuring devices (ISO/DIS 4373:2021); German and English version prEN ISO 4373:2021
2009DIN EN ISO 4373:2009 Hydrometry - Water level measuring devices (ISO 4373:2008); English version of DIN EN ISO 4373:2009-01