The bearing plates will be 2 inches wide.

The rate of descent of the moving head will be 0.024 inch per minute.

The load-compression curve will be plotted to 0.1 inch compression and the test will then be discontinued.
_Hardness_: The tool shown in Fig.

43 (an adaptation of the apparatus used by the German investigator, Janka) will be used.
The rate of descent of the moving head will be 0.25 inch per minute.

When the penetration has progressed to the point at which the plate "_a_" becomes tight, due to being pressed against the wood, the load will be read and recorded.
Two penetrations will be made on a tangential surface, two on a radial, and one on each end of each specimen tested.