NF EN ISO 25377
NF EN ISO 25377

NF EN ISO 25377

December 2022
Standard Current

Hydrometric uncertainty guidance (HUG)

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.

See more
View the extract New: UPSELL service
Main informations

Collections

National standards and national normative documents

Publication date

December 2022

Number of pages

82 p.

Reference

NF EN ISO 25377

ICS Codes

17.120.20   Flow in open channels

Classification index

X10-350-6

Print number

1

International kinship

ISO 25377:2020

European kinship

EN ISO 25377:2022
Sumary
Hydrometric uncertainty guidance (HUG)

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.

Replaced standards (1)
NF ISO 25377
NF ISO 25377
February 2021
Standard Cancelled
Hydrometric uncertainty guidance (HUG)

Table of contents
  • 1 Domaine d'application
  • 2 Références normatives
  • 3 Termes et définitions
  • 4 Symboles
  • 5 Guide ISO/IEC 98-3 (GUM) - Définitions et règles fondamentales
  • 6 Écoulement à surface libre - Méthodes par exploration du champ des vitesses
  • 7 Écoulement à surface libre - Méthode de la profondeur critique
  • 8 Méthodes par dilution
  • 9 Instrumentation en hydrométrie
  • 10 Guide pour la rédaction des articles relatifs à l'incertitude dans les normes hydrométriques
  • 11 Exemples
  • Annexe A (informative) Introduction à l'incertitude en hydrométrie
  • Annexe B (informative) Introduction à la simulation de Monte-Carlo (MCS)
  • Annexe C (informative) Méthode d'estimation de la variance par interpolation (IVE)
  • Annexe D (informative) Guide de performances des équipements hydrométriques utilisés dans les exemples de normes techniques
  • Annexe E (informative) Analyse de l'incertitude de la relation hauteur-débit
  • Annexe F (informative) Mesure de la vitesse
  • Bibliographie
ZOOM ON ... the Requirements department
To comply with a standard, you need to quickly understand its issues in order to determine its impact on your activity.

The Requirements department helps you quickly locate within the normative text:
- mandatory clauses to satisfy,
- non-essential but useful clauses to know, such as permissions and recommendations.

The identification of these types of clauses is based on the document “ISO / IEC Directives, Part 2 - Principles and rules of structure and drafting of ISO documents ”as well as on a constantly enriched list of verbal forms.

With Requirements, quickly access the main part of the normative text!

With Requirements, quickly access the main part of the normative text!
What is the Redline format?
The Redline + service - standards comparator allows you to easily and simply identify major changes between the current standard and its last canceled version.

At a glance, you will be able to identify the additions, deletions or modifications to a text, table, figure and formula.
At a glance, you will be able to identify the additions, deletions or modifications to a text, table, figure and formula

The Redlines + service is offered to you on the collection of French standards in force, in French language and in HTML and PDF format.

For an overview of the service, click on View a standard in redline format
New: UPSELL service
- The UPSELL service allows you to easily update one of your standards.
- With a single click, add a new language, the Requirements or Redline+ service and add one or more additional users.
- Whether you are in the process of acquiring a standard or it is already available in your personal space, the UPSELL service is available at every stage to help you understand it and implement it within your organization.
Need to identify, monitor and decipher standards?

COBAZ is the simple and effective solution to meet the normative needs related to your activity, in France and abroad.

Available by subscription, CObaz is THE modular solution to compose according to your needs today and tomorrow. Quickly discover CObaz!

Request your free, no-obligation live demo

I discover COBAZ