Gost 6793 May 2026

The dropping point is a critical physical indicator in tribology (the study of friction and wear). It indicates the specific temperature at which a grease passes from a semi-solid to a liquid state under controlled conditions. 🔍 What is the Dropping Point?

A small grease sample is packed into a specialized metal cup with a standardized hole at the bottom.

Note: While identical in premise, subtle variations in heating rates or cup dimensions between these standards can result in slight numerical differences in the final recorded temperature. gost 6793

These multi-purpose greases boast a far higher dropping point, generally exceeding 180 °C under GOST 6793.

The cup is placed in a test tube alongside a thermometer and steadily heated in a oil or air bath. The dropping point is a critical physical indicator

When reading a technical data sheet (TDS) for an industrial or automotive grease manufactured under GOST standards, you will almost always see GOST 6793 cited next to the dropping point specification. For instance:

This measurement serves as a benchmark for a lubricant’s heat resistance, defining the maximum temperature it can endure before losing its structural integrity. ⚙️ How the GOST 6793 Test Works A small grease sample is packed into a

Formulated under GOST 1033-79, these are intended for low-temperature applications up to about 65 °C. Their dropping points typically register on the lower end, around 75 °C to 100 °C.