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Home > Quality Standards > Laminate Flooring
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  APPEARANCE
AC2/AC3/AC4
Item
Requirement
Defects
A & Acceptable qualities
Front
Back
Frost and water marks
A: Not Allowed
Acceptable£ļ°‹ 3% of the surface
Allowed
Scratches on the surface
Not Allowed
HDF exposed not allowed
Imprints on the surface
Not Allowed
Not Allowed
Holes
Not Allowed
Not Allowed
Gloss unevenness
A: Not Allowed
Acceptable£ļ°‹3% of the surface
Allowed
Spots, dirt and similar
surface defects
A: Not Allowed
Acceptable£ļ°‹10 mm2, max 1/board
Allowed
Blisters
Not Allowed
Max 1/pc °‹ 10 mm2
Humps
Not Allowed
Max 1/pc °‹ 10 mm2
Defects on decorative paper
Not Allowed
Max 1/pc °‹ 100 mm
(on balance paper)
Missing decorative or
balance paper
Not Allowed
Maximum 1/pc °‹ 20 mm2
Edge defects
Allowed if they do not affect aesthetics after installation
Allowed
Cracks on the surface
Not Allowed
Not Allowed
Colour not even
Obvious unevennes not allowed
Allowed
Delamination
Not Allowed
Not Allowed
Missing or damaged locking systems or edges/corners
Not Allowed
Not Allowed

  DIMENSIONAL TOLERANCES

Item
Requirement
Tolerance in thickness °‹ 0.5 mm of the actual average thickness
Difference between actual maximum and minimum
thickness °‹0.5 mm
Tolerance in length If the nominal length is °‹1500 mm, tolerance in length is °‹1 mm
If the nominal length is £ĺ 1500 mm, tolerance in length is °‹2 mm
Tolerance in width °‹0.1 mm of the actual average width
Difference between actual maximum and minimum width °‹0.2 mm
Squareness °‹ 0.2 mm
Straightness °‹ 0.3 mm/m
Wing warp Cup warping concave: Chord °‹ 0.15% of width
Cup warping convex: Chord °‹ 0.2% of width
Bow warping concave: Chord °‹ 0.5% of length
Bow warping convex: Chord °‹ 1% of length
Space between
connected boards
Average°‹0.15 mm, max°‹0.2 mm
Height difference between connected boards Average°‹0.1 mm, max°‹0.15 mm

  PHYSICAL AND CHEMICAL PROPERTIES
Tests
Unit
A quality
Bending strength (Modulus of Rupture)
Mpa
°›35
Internal bond
Mpa
°› 1
Board moisture content
%

3°ę10

Core board density
g/cm3
°›0.85
Thickness swelling 24 hrs
£•
°‹18
Adhesion test
Mpa
°› 1
Surface resistance to changes in temperature
  No cracks , no blisters
Surface resistance to scratches
N
4 N£¨decorative paper not scratched
Dimensional variations after relative humidity changes
mm
(°‹0.9)
Surface resistance to cigarette burn
  No black spots, no cracks, no blisters
Surface resistance to heating
  No cracks , no blisters
Surface resistance to stain and rosion
  No stain, no erosion
Surface resistance to cracking
  No cracks under 6Xmagnifying glass
Abrasion class resistance
cycles
AC2 - Home useĘÚ: °›4000
AC3 - Home useĘŮ: °›6000
AC4 - Commercial use: °›9000
Impact resistance
mm
Maximum: 12 (°‹10)
Formaldehyde emission
mg/L
E0 °‹:0.5
E1°‹:1.5
Colour Fastness
grade
°› grade4 on gray colour card

 


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