NF EN ISO 748
NF EN ISO 748

NF EN ISO 748

April 2009
Standard Cancelled

Hydrometry - Measurement of liquid flow in open channels using current-meters or floats

View the extract New: UPSELL service
Main informations

Collections

National standards and national normative documents

Publication date

April 2009

Release date

décembre 2021

Number of pages

55 p.

Reference

NF EN ISO 748

ICS Codes

17.120.20   Flow in open channels

Print number

1 - avril 2009

International kinship

ISO 748:2007

European kinship

EN ISO 748:2007
Standard replaced by (1)
NF EN ISO 748
NF EN ISO 748
December 2021
Standard Current
Hydrometry - Measurement of liquid flow in open channels - Velocity area methods using point velocity measurements

This document specifies methods for determining the velocity and cross-sectional area of water flowing in open channels and for calculating the discharge employing point velocity measurement devices. It is applicable to methods using rotating-element current meters, acoustic doppler velocimeters (ADVs), acoustic doppler current profiler (ADCP) stationary method, surface velocity measurement including floats and other surface velocity systems. Although some general procedures are discussed, this document does not describe in detail how to use or deploy these systems. NOTE         For detailed procedures, refer to guidelines from instrument manufacturers and the appropriate public agencies.

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!
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