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  • BSI
    PD CEN/TR 17993:2023 Calibration and accuracy of non-catching precipitation measurement instruments
    Edition: 2023
    $435.35
    / user per year

Description of PD CEN/TR 17993:2023 2023

Non-catching type gauges are the emerging class of in situ precipitation measurement instruments. For these instruments, rigorous testing and calibration are more challenging than for traditional gauges. Hydrometeors’ characteristics like particle size, shape, fall velocity and density need to be reproduced in a controlled environment to provide the reference precipitation, instead of the equivalent water flow used for catching-type gauges. They are generally calibrated by the manufacturers using internal procedures developed for the specific technology employed. No agreed methodology exists, and the adopted procedures are rarely traceable to internationally recognized standards. This document describes calibration and accuracy issues of non-catching instruments used for liquid/solid atmospheric precipitation measurement. An overview of the existing models of non-catching type instruments is included, together with an overview and a description of their working principles and the adopted calibration procedures. The literature and technical manuals disclosed by manufacturers are summarized and discussed, while current limitations and metrological requirements are identified.

Standard NumberPD CEN/TR 17993:2023
TitleCalibration and accuracy of non-catching precipitation measurement instruments
StatusDefinitive
Publication Date2023-11-08
Identical National Standard OfCEN/TR WI 00318084
DescriptorsCalibration, Measuring instruments, Accuracy, Precipitation methods, Weather, Environmental testing, Hydrometers
ICS07.060 Geology. Meteorology. Hydrology, 17.120.20 Flow in open channels
CommitteeCPI/113
ISBN978 0 539 21612 7
PublisherBSI
Pages28

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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