ISO 12922:2012 PDF

Scope: This International Standard specifies the minimum requirements of unused fire-resistant and less-flammable hydraulic fluids for hydrostatic and hydrodynamic systems in general industrial applications. lt is not intended for Use in aerospace or power-generation applications，where different reduirements 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 International Standard: 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 less-flammable "fluids. NOTE For the purposes of this International Standard, the terms % (mm and % (WV) ”are used to represent， : respectively, the mass fraction and the volume faction of a material.

ISO 12922:2012 history

2020 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
2012 ISO 12922:2012 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
2001 ISO 12922:1999/Cor 1:2001 Lubricants, industrial oils and related products (class L) - Family H (Hydraulic systems) - Specifications for categories HFAE, HFAS, HFB, HFC, HFDR and HFDU; Technical Corrigendum 1
1999 ISO 12922:1999 Lubricants, industrial oils and related products (class L) - Family H (Hydraulic systems) - Specifications for categories HFAE, HFAS, HFB, HFC, HFDR and HFDU