FTM 313 (FED-STD-791 method 313) Penetration of Lubrication Greases After Prolonged Working

This method uses a standard grease worker for a prolonged work stability (100,000 stroke) penetration as in ASTM D217 "Cone Penetration of Lubricating Grease", but applies a greater shear stress to the sample.

In a standard grease worker, the grease is pushed back and forth through a metal plate with holes. The size of the holes determines the amount of shear stress on the sample, with smaller holes producing larger stresses. The plates in this method have smaller holes than the plates in ASTM D217, causing larger shear stresses, and creating more severe conditions to challenge the grease to maintain a proper consistency. The final penetration value is reported.

Price: $184.00

Sample size: 1 pint

Related tests:

• ASTM D217 – Penetration, Unworked only
• ASTM D217 – Penetration, Low Temperature, Unworked @ -40°C
• ASTM D217 – Storage Stability @ 2 months, Unworked & Worked Penetration
• ASTM D1403 – Penetration, Unworked or Worked,1/4 Scale
• ASTM D1403 – Penetration, Unworked or Worked, 1/2 Scale
• ASTM D1403 – Penetration, Low Temperature, Unworked @ 0°C to -40°C