Different kinds of wood-Bamboo-composite floorings quality inspection:
Carbonized Horizontal Engineer Flooring
Carbonized Vertical Engineer Flooring
Natural Horizontal Engineer Flooring
Natural Vertical Engineer Flooring
Strand Woven Flooring
Strand Woven Tiger Flooring
Strand Woven Outdoor Flooring
Carbonized Strand Woven Flooring
Some comment factors for wood-Bamboo-composite floorings quality inspection:
Determination of resistane to cigarette burns
Determination of resistance to immersion boiling water
Determination of resistance to dry heat
Determination of resistance to impact
Determination of dimensional stability
Determination of resistance to surface staining
Determination of resistance to surface wear
Determination of thickness swelling rate of water absorption
Determination of flush tensile strength
Determination of density
Determination of static bending strength and elastic modulus
Determination of formaldehyde released
Determination of moisture content
Examination Items and Methods:
The examination items of solid wood flooring include process precision, appearance inspection
and physical mechanics performance examination.
3.1 Examination of process precision
3.1.1 Measuring instrument
22.214.171.124 Steel tape, precision: 1.0mm.
126.96.36.199 Steel rule, precision: 0.5mm.
188.8.131.52 Micrometer, precision: 0.01mm.
184.108.40.206 Vernier caliper, precision: 0.02mm.
220.127.116.11 Clearance gauge, precision: 0.01mm.
3.1.2 Examination methods
18.104.22.168 Length (l) examination
The examination of length (l) is measured in the both sides along the floor width direction, and
10mm away from the flooring sides by steel tape or steel rule, the precision is up to .5mm
22.214.171.124 Examination of width (w)
The examination of length (w) is measured in the both sides along the floor width direction, and
20mm away from the flooring sides by steel tape or steel rule, the precision is up to .5mm
126.96.36.199 Examination of thickness (t)
The examination of thickness(t) is measured in the four corners of the flooring, and the midpoint
of the long side of the flooring (20mm away from the flooring side) by micrometer, the precision is 0.1mm
188.8.131.52 Examination of squareness (q)
For measuring the squareness (q), one side of L-square abuts against the long side of the flooring, and the maximum distance from the other side of the L-square to the terminal of the flooring is measured
by clearance gauge, the accuracy is up to 0.01mm
A grade: Almost without any objection, perfect board.
B grade: Slightlyvarious colour allowed. the diameter of dead knots must be under 5mm and the diameter of live knots be under 8mm, maximum of each kinds
knots is 3. The width of sapwood must be under 8mm, the length of sapwood is unlimited.The length of black line must under 200mm and the width under 1mm. any other objection are unaccepted.
C grade: Middle degree various colour accepted, the diameter of dead knots must be under 8mm and the diameter
of live knots be under 15mm, maximum of each kinds knots is 3. sapwood free.
D grade: Various colouraccepted, live knots free, sapwood free, the diameter of dead knots is under 50mm.The length of crack
must be under 300mm, width under 2mm. any other objection, including the worm hole, molder and unnature various colour are not allowed.
E grade: Various colour accepted, allow only one 50mm diameter knot, one to three 30mm diameter knots. The length of crack must be under 300mm, width under 3mm. Molder is not allowed, big and can be filled worm hole allowed. Little worm hole is not allowed.
Contact Name: Eagleeyes
Company Name: Eagle Eyes China Quality Inspection Company
Street Address: #2404,
Huijingxiangju Building, Wenpu
Street, Taiwanese Investment Zone,
Zhangzhou, Fujian, China
Other Contact Info:
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Member Since: 21 October 2012
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