This document specifies the functional requirements of instrumentation for measuring the level of water surface (stage), primarily for the purpose of determining flow rates. This document is supplemented by Annex A, which provides guidance on the types of automatic water level measurement devices currently available and the measurement uncertainty associated with them. The manually operated measuring devices are described in Annex B. This document is applicable to 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.
EN ISO 4373:2022由欧洲标准化委员会 IX-CEN 发布于 2022-04-20,并于 2022-07-31 实施,于 2022-10-31 废止。
EN ISO 4373:2022在国际标准分类中归属于: 17.120.20 明渠中流量的测量。
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