NF ISO 3966

NF ISO 3966

August 2021
Standard Cancelled

Measurement of fluid flow in closed conduits — Velocity area method using Pitot static tubes

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Main informations

Collections

National standards and national normative documents

Publication date

August 2021

Number of pages

64 p.

Reference

NF ISO 3966

ICS Codes

17.120.10   Flow in closed conduits

Print number

1

International kinship

ISO 3966:2020
Replaced standards (1)
NF X10-112
October 1977
Published document Cancelled
Measurement of fluid flow in closed conduites.velocity area method using pitot static tubes.

Standard replaced by (1)
NF ISO 3966
July 2025
Standard Current
Measurement of fluid flow in closed conduits - Velocity area method using Pitot static tubes

This document specifies a method for the determination in a closed conduit of the volume rate of flow of a regular flow a)       of a fluid of substantially constant density or corresponding to a Mach number not exceeding 0,25, b)       with substantially uniform stagnation temperature across the measuring cross-section, c)        running full in the conduit, and d)       under steady flow conditions. In particular, it deals with the technology and maintenance of Pitot static tubes, with the calculation of local velocities from measured differential pressures and with the computation of the flow rate by velocity integration.

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