6793 - Gost

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.

At the dropping point, the first drop of the sample falls from the test cup. gost 6793

is the state standard used across Russia and the CIS region to define the test method for determining the dropping point of petroleum products, primarily lubricating greases. Note: While identical in premise, subtle variations in

Complex or polyurea greases intended for extreme operating environments will feature dropping points clearing 230 °C to 250 °C. 🌍 International Equivalents Complex or polyurea greases intended for extreme operating

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

Lubricating greases are engineered by combining a base oil with a thickener and performance additives. The thickener holds the oil like a sponge. As grease is heated, it reaches a temperature where the thickener can no longer retain the oil.

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?