Green material: The material to be tested green will be kept in a green state by being submerged in water until near the time of test. It will then be surfaced, sawed to length, and stored in damp sawdust at a temperature of 70°F. (as nearly as practicable) until time of test. Care should be taken to avoid as much as possible the storage of green material in any form.
Air-dry material: The material to be air-dried will be cut into sticks 2-1/2" × 2-1/2" × 4'. The ends of these sticks will be paraffined to prevent checking. This material will be so piled as to leave an air space of at least one-half inch on each side of each stick, and in such a place that it will be protected from sunshine, rain, snow, and moisture from the ground. The sticks will be surfaced and cut to length just previous to test.
Order of Tests
The order of tests in all cases will be such as to eliminate so far as possible from the comparisons the effect of changes of condition of the specimens due to such factors as storage and weather conditions.
The material used for determining the effect of height in tree will be tested in such order that the average time elapsing from time of cutting to time of test will be approximately the same for all bolts from any one tree.
Tests on Green Material
The tests on all bolts, except those from which a comparison of green and dry timber is to be gotten, will be as follows:
Static bending: One stick from each pair. A pair consists of two adjacent sticks equidistant from the pith, as N7 and N8, or H5 and H6.
Impact bending: Four sticks; one to be taken from near the pith; one from near the periphery; and two representative of the cross section.
Compression parallel to grain: One specimen from each stick. These will be marked "1" in addition to the number of the stick from which they are taken.