DIN 51502-6:2026-03

This document specifies the abbreviated designation for all hydraulic fluids. The classification of the individual lubricant groups and the basic structure of the abbreviated designation for hydraulic fluids consisting of up to three designation blocks (A, B, C) are specified in DIN 51502-1. This document specifies the labeling of packaging, containers, lubricant reservoirs, lubrication equipment, lubrication points, and the information provided in product data sheets. The general international labeling of hydraulic fluids is specified in DIN EN ISO 6743-4. The specific international labeling of hydraulic fluids is defined in ISO 6743-7 and ISO 6743-14. This document has been prepared by Working Committee NA 062-06-51 AA "Anforderungen an Schmieröle und sonstige Öle" ("Requirements for lubricating oils and other oils") of Fachausschuss Mineralöl- und Brennstoffnormung (FAM) "(Technical Committee Petroleum, Fuels, Lubricants and Related Products (FAM)") of DIN Standards Committee Materials Testing (NMP).