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DIN EN ISO 6743-4:2015
Lubricants, industrial oils and related products (class L) - Classification - Part 4: Family H (Hydraulic systems) (ISO 6743-4:2015); German version EN ISO 6743-4:2015
This document specifies a method for classification of lubricants, industrial oils and related products of class L, family H for hydraulic systems.
Deutsches Institut für Normung [din]