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ISO 6743-4:2015
Lubricants, industrial oils and related products (class L) - Classification - Part 4: Family H (Hydraulic systems)
ISO 6743-4:2015 establishes the detailed classification of fluids of Family H (Hydraulic systems) which belong to class L (Lubricants, industrial oils, and related products). It is intended to be read in conjunction with ISO 6743‑99. This classification system does not include automotive brake fluids or aircraft hydraulic fluids.
International Organization for Standardization [iso]