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EVS-EN ISO 25377:2022

Hydrometric uncertainty guidance (HUG) (ISO 25377:2020)

General information

Valid from 30.12.2022
Base Documents
ISO 25377:2020; EN ISO 25377:2022
ICS Groups
17.120.20 Flow in open channels
Directives or regulations
None

Standard history

Status
Date
Type
Name
30.12.2022
Main
EVS-EN ISO 25377:2022
07.03.2008
Main
CEN ISO/TS 25377:2007
This document provides an understanding of the nature of measurement uncertainty and its significance in estimating the "quality" of a measurement or a determination in hydrometry.
This document is applicable to flow measurements in natural and man-made channels. Rainfall measurements are not covered.

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Standards designation

EVS Estonian standard
EN European standard (published by an CEN or CENELEC)
EN ISO International standard adopted as an European standard
ISO International Organization for Standardization’s standard
IEC International Electrotechnical Commission’s standard
HD CENELEC’s harmonisation document
   
EVS-EN European standard implemented in Estonia
EVS-EN ISO International standard adopted in Europe and implemented in Estonia
EVS-EN ISO/IEC International standard/International electrotechnical standard adopted in Europe and implemented in Estonia
EVS-IEC International electrotechnical standard implemented in Estonia
EVS-ISO International standard implemented in Estonia
   
A, AMD amedment
+A a full standard plus the amendment
/A only amendment
COR, AC corrigendum
+COR a full standard plus the corrigendum
NA national annex
+NA a full standard plus the national annex
/NA only national annex
TS technical specification
TR technical report
CWA agreement, developed by a CEN or CENELEC
prEVS-EN (etc) draft standard
   
et the standard is in Estonian only
en the standard is in English only
et-en the standard is in Parallel text Estonian-English