Cleavage Test --ASTM D143 Standard Test Methods for Small Clear Specimens of Timber

Cleavage Test

1.   Size of Specimens
The cleavage tests shall be made on specimens of the form and size in accordance with Fig. 25. The actual width and length at minimum section shall be measured.
2.   Procedure
The specimens shall be held during test in grips as shown in Figs. 26 and 27. Observe the maximum load only.
3.   Speed of Testing
The load shall be applied continuously throughout the test at a rate of motion of the movable crosshead of 0.10 in. (2.5 mm)/min
4.   Sketch of Failure
The failure shall be sketched on the data sheet.
5.   Moisture Content
One of the pieces remaining after failure, or a section split along the surface of failure, shall be used as a moisture specimen.