ISO/FDIS 8426-1

Hydraulic fluid power — Determination of derived displacement of positive displacement pumps and motors — Part 1: Two-step Toet method

General information

Current stage: 50.20 Effective date: May 26, 2025

Originator: ISO

Owner: ISO/TC 131/SC 8

Type: International Standard

Scope

This document specifies the Toet methods for the determination of the derived displacement of hydraulic fluid power positive displacement pumps and motors under steady-state conditions. A single value for the derived displacement is determined from measurements at multiple shaft speeds.

Life cycle

PREVIOUSLY

PUBLISHED
ISO 8426:2008

NOW

IN_DEVELOPMENT
ISO/FDIS 8426-1
50.20 Proof sent to secretariat or FDIS ballot initiated: 8 weeks
May 26, 2025

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