I agree with Killer. I have done a bunch of test runs for Subbing and if you nuke a clean sample for about 8 seconds it seems to stay at about 97.3 to 97.8 for several hours. Just make sure your test is within 2 hours or so and you should be fine.
Allee Elm. Ulmus parvifolia. Ulmaceae. No Image Available: Height 30'-40' Spread 35'-45' Deciduous. The Allee Elm is a large deciduous tree that grows in most soils. Leaves turn a golden color in fall with distinctive peeling bark. Drought tolerant.
Introduced to the United States in the middle 1800s, Siberian elm pays for its fast growth with brittle wood that is subject to storm damage. Its large limbs are subject to splitting from the crotches of older trees. If you are thinking of planting a Siberian elm, you might want to think again!