0 Items
My account
Phone: (011) 7541-421, 3409-301, 3409-335, 6547-293, 3409-310
E-mail: Standards sales: prodaja@iss.rs Education: iss-edukacija@iss.rs Information about standards: infocentar@iss.rs
Stevana Brakusa 2, 11030 Beograd
Main menu

ISO 3966:2025

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

Jul 3, 2025

General information

60.60     Jul 3, 2025

ISO

ISO/TC 30/SC 5

International Standard

17.120.10  

English   French  

Buying

Published

Language in which you want to receive the document.

Scope

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.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 3966:2020

NOW

PUBLISHED
ISO 3966:2025
60.60 Standard published
Jul 3, 2025

National adoptions

prSRPS ISO 3966:2026  
ISS

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

10.99   New project approved

M115 more