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
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.
A small grease sample is packed into a specialized metal cup with a standardized hole at the bottom. gost 6793
Technicians monitor the cup. The exact temperature recorded on the thermometer when the first drop falls through the bottom hole is officially cataloged as the dropping point.
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. This measurement serves as a benchmark for a
These multi-purpose greases boast a far higher dropping point, generally exceeding 180 °C under GOST 6793.
If you are working with equipment or grease specified under non-CIS metrics, the procedure outlined in GOST 6793 is highly comparable to the following international standards: or ASTM D2265 (United States) ISO 2176 (International Organization for Standardization) DIN 51801 (Germany) Technicians monitor the cup
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.