Reference number
ISO 12922:2020
© ISO 2024
International Standard
ISO 12922:2020
Lubricants, industrial oils and related products (class L) — Family H (hydraulic systems) — Specifications for hydraulic fluids in categories HFAE, HFAS, HFB, HFC, HFDR and HFDU
Edition 3
2020-02
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Published (Edition 3, 2020)

ISO 12922:2020

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Format
CHF 63
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Abstract

This document specifies the minimum requirements of unused fire-resistant and less flammable hydraulic fluids for hydrostatic and hydrodynamic systems in general industrial applications. It is not intended for use in aerospace or power-generation applications, where different requirements apply. It provides guidance for suppliers and end users of these less hazardous fluids and to the manufacturers of hydraulic equipment in which they are used.

Of the categories covered by ISO 6743-4, which classifies the different types of fluids used in hydraulic applications, only the following are detailed in this document: HFAE, HFAS, HFB, HFC, HFDR and HFDU.

Types HFAE, HFAS, HFB, HFC and HFDR are "fire-resistant" fluids as defined by ISO 5598. Most HFDU fluids, while displaying an improvement in combustion behaviour over mineral oil, fall outside this definition and are more appropriately considered as "less flammable" fluids.

General information

  • Status
     : Published
    Publication date
     : 2020-02
    Stage
    : International Standard published [60.60]
  • Edition
     : 3
    Number of pages
     : 11
  • Technical Committee :
    ISO/TC 28/SC 4
    ICS :
    75.120 
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