ASTM D3115 Test Method for Explosive Reactivity of Lubricants with Aerospace Alloys Under High Shear
9. Procedure
9.1 Place a dowel pin in the drill chuck and secure.
9.2 Adjust the drill press to run at 1760 rpm.
9.3 Adjust the load with the force gage to be 233 +/- 2 N (52.5 +/- 0.5 lbf) which is equivalent to 6.89 MPa (1000 psi).
9.4 Position block in vise so that it will be at 1.57 +/- 0.09 rad (90 +/- 5°) to the axis of the dowel pin, and locate the vise on the drill press table in such a way that the hole and dowel axes will be self-aligning.
9.5 Place 0.7 +/- 0.1 mL of sample in the first hole, using a 5-mL hypodermic syringe or equivalent.
9.5.1 Unless otherwise required, the test specimens and sample shall be at room temperature; that is, 295 to 301 K (72 to 82°F).
9.6 Lower the dowel pin to the bottom of the hole.
9.7 Apply the load to the dowel pin.
9.8 Position the safety shield.
9.9 Start the motor on the drill press and run the test under load for 60 +/- 5 s, or until reaction is evident, and stop while still loaded.
9.10 During the test period, observe the hole for sparks, smoke, and explosive (audible) sounds.
9.11 After terminating the run, release the load and examine the residue for changes in appearance. Record the results.
9.12 Repeat 9.5-9.8 to a total of six runs, using a new hole and dowel-end for each test.
