ISO 15380:2023

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Lubricants, industrial oils and related products (class L) — Family H (Hydraulic systems) — Specifications for hydraulic fluids in categories HETG, HEPG, HEES and HEPR

ISO 15380:2023 is an international standard that specifies requirements for "environmentally acceptable hydraulic fluids" used in hydraulic systems, particularly in the categories of HETG (hydro-ester triglycerides), HEPG (polyglycols), HEES (ester-based), and HEPR (polyalkylene glycols), essentially defining the properties and performance standards for biodegradable hydraulic fluids used in various industrial applications