This document specifies the abbreviated designation of lubricating oils that are mainly used in the industrial sector. The classification of the individual lubricant groups and the basic structure of the abbreviated designation for lubricating Lubricating oils from the industrial sector in up to three designation blocks (A, B, C) is defined in DIN 51502-1. This document specifies the labeling of packaging, containers, lubricant containers, lubrication devices, lubrication points and the information in product data sheets. The general international labeling of lubricants is defined in DIN ISO 6743-99. The specific international labeling of lubricating oils that are mainly used in the industrial sector are defined in ISO 6743-1, ISO 6743-2, ISO 6743-3, ISO 6743-5, ISO 6743-6, ISO 6743-11 and ISO 6743-13.