Wood Testing Laboratory in Hyderabad

     Modulus of rupture

• Modulus of rupture is the maximum load carrying capacity of a member. It is generally used in tests of bending strength to quantify the stress required to cause failure. It is reported in units of psi.

• Test Method IS 1734 (P-11)1983, RA-2003, IS 1708 (P-5) 1985

  Modulus of elasticity

• This test helps in determining the flexural stiffness and modulus of elasticity properties of wood-based materials by nondestructive testing using transverse vibration in the vertical direction.

• Test Method IS 1734 (P-11)1983, RA-2003, IS 1708 (P-5)1985

  Internal bond strength

• The purpose of this test is to design a compression shear device for easy and fast measurement of the bonded shear strength of wood-based materials.

• Test Method IS 1734 (P-4) 1983, RA-2003

  Moisture content

• This test helps in determining the moisture content (MC) of solid wood, veneer, and other wood-base materials, including those that contain adhesives and chemical additives.

• Test Method IS 1734 (P-1) 1983, RA-2003

  Density

• Analyzing tree density can serve great ecological and scientific function. The tools used to accumulate this knowledge are generally uncomplicated and minimize any ensuing damage done to tree specimens.

• Test Method 1708 (P-2)1986, RA-2008

  Bending strength

• In bending, it is assumed that wood is linearly elastic for low values of stress, i.e., the stress and strain are proportional to each other and produce an elastic or straight-line plot on the typical stress-strain curve.

• Test Method IS 1734 (P-11) 1983

  Compression strength

• The box compression test (bct) measures the compressive strength of boxes made of corrugated fiberboard as well as wooden boxes and crates. It provides a plot of deformation vs compressive force . Containers other than boxes can also be subjected to compression testing drum, pail, etc.

  Test Method

  Wood-based panels

• This test helps in determining the structural panels of uniform properties within a panel. It is useful for evaluating plywood of clear, straight-grained veneers, and determining the effect of chemical or preservative treatments, construction, principal direction with respect to direction of stress, and other variables that are expected to uniformly influence the panel.

• Test MethodIS 4020 (P-1 to 16)1998

  Absorbability

• This test helps in determining the quantity of water absorbed in a specified time through the surface of an overlaid wood-based panel. The test method measures the rate of water weight gain within a controlled surface area of the overlaid panel surface when exposed to standing water.??

• Test Method?? ASTM D 5795.

  Swelling in thickness

• This test helps in determining the effect of ambient environment, temperature and relative humidity, on the hygroscopic thickness swelling rate of wood fiberboard and wood fiber/polymer composites. A swelling model describing the thickness swelling process of composites exposed to water vapor conditions was developed, from which the parameter,??KSR, can be used to quantify the swelling rate.

• Test Method IS 2380 (P-17)1977, RA-203

  Ability to hold a screw

• The ability to hold screws in both face and edges is an important attribute of wood.

• Test Method IS 2380 (P-14)1977, RA-2003, IS 1708 (P-15)1986

  Dimensions stability

• Dimensional stability is measured by noting the length, width and thickness of the test pieces after conditioning to constant mass at 35% rh, 25 DegreeC and after condit ioning at 85% rh, 25 DegreeC. The dimensional stability is expressed as the sum of the percentage changes in each dimension between these limits.
• Test Method IS 4020 (P-3)1998