2023-01-11 16:56:34
2022-09-06 10:34:35
2022-09-06 10:30:49
2023-02-15 10:13:32
QUALITY CONTROL STANDARD-CORK FLOORING
SCOPE
This standard applies to Bl. (Quercus Q.variabilis) or similar tree bark processing and application of adhesive made of the floor, including cork flooring, Floating Cork Floor.
TECHNICAL REQUIREMENTS
Size And Deviation
Length: ≤±1mm
Width: ≤0.1mm, the difference between the maximum and minimum values ≤0.2 mm
Thickness: The absolute difference between the basic thickness and the average thickness ≤0.25mm, the difference between the maximum and minimum values ≤0.5 mm, negative deviation is not allowed
Straight Angle: Qmax ≤0.20mm
Straightness: Smax ≤0.30mm/m
Warp upon: ≤1.00% of length, ≤0.20% of width; Warp down: ≤0.50% of length, ≤0.15% of width
Gap: average value≤ 0.15 mm, Gmax ≤0.2 mm
Height difference: average value ≤0.10mm, Hmax ≤0.15mm
WPC Physical And Chemical Performance Requirements
Cork Flooring
Item |
Standard |
|
Moisture Content |
≤ 8% |
|
Density |
Category I |
ρ≥500kg/m3 |
Category II |
450kg/m3≤ρ≤500kg/m3 |
|
Category III |
400kg/m3≤ρ≤450kg/m3 |
|
Initial compression degree |
≤10% |
|
Residual compression degree |
≤2% |
|
Tensile strength |
ρ≥500kg/m3 |
≥1.6MPa |
450kg/m3≤ρ≤500kg/m3 |
≥1.4MPa |
|
400kg/m3≤ρ≤450kg/m3 |
≥1.2MPa |
|
abrasion resistance of surface |
≤0.15g/100r and paint film did not grind through |
|
Stain resistance of surface |
No stain or decay marks on the surface |
|
Boiling water resistance |
No disintegration happens |
|
Boiling hydrochloric acid resistance |
||
Disintegration means the test sample is cracked or 20% of the particles have fallen off in the course of test. |
Floating Cork Flooring
Item |
Standard |
Moisture Content |
≥3, ≤12 |
Initial compression degree |
≤10 |
Residual compression degree |
≤2 |
Abrasion resistance of surface |
≤0.15g/100r and paint film did not grind through |
Stain resistance of surface |
No stain or decay marks on the surface |
Formaldehyde Release |
≤1.5mg/L |
PACKING
Product Marks
Marks indicate category, production date and code of the inspector shall be stamped on the floor.
Package
The floor shall be packed based on their categories and specifications. On each package, the factory name, category, brand, specification, quantity, and labels of floor standard code shall be marked, and a label used to guarantee the adhesive's conformity to GB18583 shall also be presented.
Transportation and Storage
Floor shall be placed carefully on the flat ground during transportation, and shall be kept safe from dampness, rain, exposure to strong sunlight and clashes.