Final Draft
International Standard
ISO/FDIS 8426-1
Hydraulic fluid power — Determination of derived displacement of positive displacement pumps and motors — Part 1: Two-step Toet method
Reference number
ISO/FDIS 8426-1
Edition 1
© ISO 2025
Final Draft International Standard
Under development
This draft is in the approval phase.
Will replace ISO 8426:2008

Abstract

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.

General information

  • Status
     : Under development
    Stage
    : Final text received or FDIS registered for formal approval [50.00]
  • Edition
     : 1
  • Technical Committee :
    ISO/TC 131/SC 8
    ICS :
    23.100.10 
  • RSS updates

Life cycle

Sustainable Development Goals

This standard contributes to the following Sustainable Development Goal

9
Industry, Innovation and Infrastructure

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