How to test durability of bamboos?
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In a test where a steel ball is dropped from various prescribed heights, bamboo resisted denting better than oak, and is about equivalent to our hardest native wood, maple. The finish chosen can have a much greater impact on long-term durability and scratch-resistance. Eventually, all floors will scratch, and bamboo can easily be refinished, unlike laminate flooring.\n*In a cross-section of a bamboo culm it has to be distinguished between a dark outer zone (approximately 30 percent) with closely packed fibers and a white inner zone (about 70 percent), which is rather porous. With increasing culm height the share of percentage of the dense exterior fibers in relation to the cross-sectional area increases and therefore slim canes are superior to thick-walled bamboo. \nThe accumulation of the rigid fibers in the edge zone improves the values of elasticity as well as tension, shear, and bending strengths. As of timber, the modulus of elasticity (MOE) of bamboo is reduced with increasing stress (5-10 percent). A MOE of 2.000 kN/cm² can be assumed to calculate constructions.The bamboo tube is stiffened by the nodes by preventing buckling of the culm wall: The fibers are curved towards the culm axis, similar to a multiple-curved surface. Their MOE is 40 percent less than that of the internodes. \n\nThe tensile strength of the outer zone is two to three times higher than that of the inner zone. The tensile strength in the nodes is only moderate because the fibers there run disorderly. Nodes reduce the tensile strength of the culm. The tensile strength decreases in culms of over 5-6 years of age.The compression strength, however, increases with the age. In a test the 6 year old culms showed 2,5 times the compression strength than the one year old ones. Cane sections with nodes show approximately 8 percent higher compression strength values parallel to the fiber compared to sections without nodes. In tests with compression load perpendicular to the culm axis, the nodes cause strength values up to 45 percent higher than in tests with tube sections without nodes. The sea level, at which the plant grows, as well as the age of the poles have a big influence on the silicification of the vessels, which leads to a considerable increase of compression strength.The shear strength of thin bamboo canes is higher than that of thick-walled tubes, caused by the ratio of the rigid fibers to the sectional area. The shear strength of node material is about 50 percent higher than that of internode material. \n'Atrops' examined bamboo that is usual for building materials: Tube diameter 70-100 mm, wall thickness 6-12 mm, used for a span of 3,60 m. The elastic deflection was min=1/25,9; max=1/16,1; on average 1:20,1 of the span. \nIf deflection is not desired, the green bamboo culms can be bended to the opposite before installation (superelevation). \nFracture behavior-The bamboo tubes behave well at compression load. No sudden buckling nor cracking of the tube wall occurs. Shear fractures are the most frequent failures in bending tests. These are favored by drying cracks parallel to the culm axis. The internodes in which high shear stresses occur should therefore be filled with concrete. In case of shear failure, there will always remain a load-carrying capacity of the two halves. The fracture behavior of conventional timber differs from the fracture behavior of bamboo. Cracking of individual fibers does not lead to a spontaneous break of the whole cane. The appearing cracks are immediately redirected into the fiber direction and therefore affect less the stressed part. The input of energy is retarded. The reinforcement nodes (diaphragms) prevent the emerging longitudinal cracks from spreading over the entire tube length. \nParticularly the compression, shear, and ply bond strength are increased by the node material. Such symptoms are called factors of increase of the fracture toughness. In the research of modern composite materials, the attention
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This is Measured in MTBF or Mean Time Before Failiure. Noramlly if you know the manufacturer you can get information on that through thier website.
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bamboos r much fast growing species in whole plant kingdome as i have studied.it grows about 1 feet over night.
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Try looking at a substances MSDS.  That is Material Data Safety Sheet.  If it is a pure substance that will be helpful. Just put the name of the substance and MSDS into yahoo and you'll find a sheet
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Use the second derivative test, not sure exactly what it is still but it should be easy to find on the internet.
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There is a word Heartwood in xylology.If you mean so,it is not possible becuse it is totally resistant due to deposition of lignin and resins etc.
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simply use a hydrometer.
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For example a way of finding material properties of steel, is to stretch a piece up to material yielding.\nThis way the test piece is destructed,\n\nThere so many examples of test where you destroy the piece \nTo collect experimental Data.\nThis is not good because the piece might be expensive,\nor too large, or it is just the one, or it is out of reach,\nor many pieces are to be tested, and so on.\n\nA non-destructive test has many advantageous and less expensive.\nUltra sonic equipments are widely used for testing.\nMacro waves are also used.
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fill water balloons with different amounts of water and drop them at the same height to see if they fall differently.  =)
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Put the stones in a container partly filled with water. Mark the before and after levels. Then measure the volume of the amount of water it takes to fill up from the low line to the high mark. This
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You can of course try anything you wish.  However, I would suggest that you perform (or have performed) a flame test on any sample product.  I recall that the UL (Underwriters Lab) was involved in a law suit re' testing of new styrofoam panels for insulation.  The panels were used to insulate a garage and were not covered.  When a fire broke out the panels became a holocaust (causing a death).  The panels evidently passed a flame test when horizontal igniting slowly and were not tested vertically which would have shown that they were a hazard and needed to be covered to resist flame and burn rate.  You could check your panels against fibreboard (horizontally and vertically) to check for gross problems.  Also have a Lab perform formal tests before going commercial.  I would think the binder and surface texture would be very important.  good luck.
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Testing for weed\nhttp://www.marijuana.org/BeatDrugTesting.htm
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check all the sundries, like wreath bases silk flowers bowls etc
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Well it is the plant of a thousand uses, so their are a crap load of things.\nYou should just take a look at this site.\nhttp://www.bs-bamboo.co.uk/uses-of-bamboo.htm\nThis one is not bad eatheir.\nhttp://www.bambus.de/infos/1000/indexx.php
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There's a forester's tool called a clinometer. Look it up online and get one, or you can go to the local high school and see if the ag department has one there you can borrow. They are very accurate. I use them in foresty competitions with the FFA.
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FTIR is not going to tell you much other than it is an epoxy.  TGA will tell you little, unless you do TGA-MS(mass spec) which will give you component information.  The other option is LC-MS.  The simple versions of such tests will cost $1500, if you can supply some information such as melting point and/or solubilities.  FTIR will be several hundred dollars.
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twigs usually have water. Its possible to dry them out.\n\nRocks can be porous enough to trap water inside them.