This part of ISO 6743 establishes the detailed classification of fluids of family H (Hydraulic systems) which belong to class L (Lubricants,industrial oils and related products). It should be read in conjunction with ISO 6743-0. This classification excludes, for the time being, automotive buake fluids and airborne fluids. However,this edition includes environmentally acceptable fluid categories,i.e.:HETG,HEPG,HEES and HEPR.
BS EN ISO 6743-4:1999 history
2015BS EN ISO 6743-4:2015 Lubricants, industrial oils and related products (class L). Classification. Family H (Hydraulic systems)
1999BS EN ISO 6743-4:1999 Lubricants, industrial oils and related products (class L) - Classification - Family H (hydraulic systems)
BS EN ISO 6743-4:1999 Lubricants, industrial oils and related products (class L) - Classification - Family H (hydraulic systems) has been changed from BS 6413-4:1983 Lubricants, industrial oils and related products (class L). Classification for family H (hydraulic systems).