GB/T 46421-2025
ActiveDetermination of the dropping point of grease—Automatic method
润滑脂滴点的测定 自动法
Application Summary AI generated
This standard specifies an automated method for determining the dropping point of lubricating greases, which is the temperature at which a grease transitions from a semi-solid to a liquid state under controlled heating. It is applied in the petroleum and lubricant industries for quality control, product development, and performance evaluation of greases used in automotive, industrial machinery, and aerospace applications. The automated method ensures consistent and precise measurement, replacing manual techniques in laboratory testing contexts.
Related Standards
GB/T 7631.2-2003
Lubricants，industrial oils and related products(class L)--Classification--Part 2: Family H(Hydraulic systems)
GB/T 7631.17-2003
Lubricants，industrial oils and related products(class L)--Classification--Part 17:Family E(Internal combustion engine oils)
GB/T 12579-2002
Determination of foaming characteristics of lubricating oils
GB/T 2433-2001
Petroleum products--Lubricatingoils and additives--Determination of sulphated ash
GB/T 7631.16-1999
Lubricants and related products(class L)--Classification--Part 16:Family P (Pneumatic tools)
GB/T 12583-1998
Standard test method for measurement of extreme-pressure properties of lubricating fluids(four-ball method)
GB/T 7631.15-1998
Lubricants and related products(class L)--Classification--Part 15:Family N (Insulating liquids)
GB/T 7631.14-1998
Lubricants and related products(class L)--Classification--Part 14:Family U (Heat treatment)
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