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-STRAND WOVEN BAMBOO FLOORING
SCOPE
This standard specifies the definition, classification, requirements, testing methods, testing rules and marks, package,transportation, and storage of strand woven bamboo flooring.
This standard is applicable to the flooring made from strand woven bamboo.
TECHNICAL REQUIREMENTS
Size and Deviation
Length: Indoor ≤0.5mm, outdoor ≤0.5mm
Width: Indoor ≤0.15mm, the difference between the maximum and minimum values ≤0.2mm;
Outdoor ≤0.5mm, the difference between the maximum and minimum values ≤0.75 mm
Thick: Indoor ≤0.3mm, the difference between the maximum and minimum values ≤0.2mm;
Outdoor ≤0.3mm, the difference between the maximum and minimum values ≤0.2mm
Warp: Width warp upon ≤0.2mm, width warp down ≤0.15mm;
Length warp upon ≤1.0mm, length warp down ≤0.5mm;
Straightness of the edges: ≤0.2mm
Height difference: indoor Hmax ≤0.3mm
Gap: Indoor ≤0.4mm
The difference of groove and tongue: Indoor: 0.1-0.4mm
Note: After negotiation between the supplier and the customer, products with other specifications can also be manufactured.
The Appearance & Quality Requirements
Indoor Strand Woven Bamboo Flooring
Item |
Grade |
||
Superior |
Qualified |
||
Unplanned, planed trace |
Surface |
Not allowed |
|
Side |
Not allowed |
Not obvious |
|
Back |
Allowed |
||
Rabbet deformity |
Length of deformity |
Not allowed |
Sum length ≤10% of board, Per length of deformity ≤3mm |
Width of deformity |
Not allowed |
≤40% width of tongue |
|
Wane |
Not allowed |
||
Broken thorn (jump wire) |
Not allowed |
||
Split |
Not allowed |
||
Gap |
Surface |
Not allowed |
Not obvious |
Back |
Not obvious |
||
Glue line |
Not obvious |
||
Cutter and chatter mark |
Not allowed |
Not obvious |
|
Pin hole (≤0.5 mm) |
Surface |
Not allowed |
≤5 pcs/board |
Back |
Allowed |
||
Nib |
Not allowed |
Not obvious |
|
Exposed undercoat |
Not allowed |
||
Wrinkling |
Not allowed |
≤1% of board |
|
Fatty edge |
Not allowed |
Not obvious |
|
Blister (≤0.5 mm) |
Not allowed |
≤3 pcs/board |
|
Staining |
Not allowed |
≤5% of board |
|
Mildew/Mold |
Not allowed |
Not obvious |
|
Decay |
Not allowed |
||
Note: "Not too obvious"--- under natural lighting conditions, with normal eyesight, at a distance of 0.4m from the flooring, it can not be observed with naked eyes easily. |
Outdoor Strand Woven Bamboo Flooring
Item
Grade
Superior
Qualified
Unplaned
Surface, Side
Not allowed
Back
Allowed
Wane
Surface
Not allowed
Not obvious
Back
Allowed
Broken thorn
Not allowed
Not obvious
Split
Not allowed
Not obvious
Gap
Not obvious
Decay
Not allowed
Mildew/Mold
Not allowed
Not obvious
Rabbet deformity
Length of deformity
Not allowed
Sum length ≤10% of board,
Per length of deformity ≤3mm
Width of deformity
Not allowed
Scratches
Surface
Not allowed
Not obvious
Back
Allowed
Blister
Surface
Not allowed
Not obvious
Back
Allowed
Exposed undercoat
Not allowed
Pin hole
Surface
Not allowed
Not obvious
Back
Allowed
Wrinkling
Surface
Not allowed
≤5% of board
Back
Allowed
“Rabbet deformity” is applicable to inspection items with rabbets, for other types of flooring, they can be inspected after negotiation of two parties; "Varnished processing defects shall be applicable to painted outdoor strand woven bamboo flooring, for other outdoor strand woven bamboo flooring with other types of coating, they can be inspected after negotiation of both parties.
Note: "Not too obvious"---- under natural lighting conditions, with normal eyesight, at a distance of 0.4m from the flooring, it can not be observed with naked eyes easily.
Physical and Chemical Performance Requirements
Indoor Strand Woven Bamboo Flooring
Item |
Technical data |
Moisture content |
6.0-15.0% |
Density |
≥0.80g/cm3, the difference between maximum and minimum value ≤0.10g/cm3 |
Width of water absorption rate |
≤4.0% |
Thick of water absorption rate |
≤10.0% |
Horizontal shear strength |
≥12.0MPA |
Wear abrasion resistance |
≤0.15g/100r, coating film did not grind through |
Film adhesion |
≥level 3 |
Surface impact resistance |
press mark ≥10mm, no split |
Suface fouling resistance |
No stain, no decay |
Formaldehyde release |
≤0.6mg/L (≤carb2) |
Outdoor Strand Woven Bamboo Flooring
Item |
Technical data |
|
|
|
Superior |
Qualified |
|
Moisture content |
6.0-15.0% |
||
Density |
≥0.80g/cm3, the difference between maximum and mimimum value ≤0.10g/cm3 |
||
Width of water absorption rate |
≤3.0% |
≤4.0% |
|
Thick of water absorption rate |
≤5.0% |
≤10.0% |
|
Horizontal shear strength |
≥12.0MPa |
≥10.0MPa |
|
Vapor resistance of the surface |
No fissure, no blistering |
||
Anti-mildew and color variation resistance |
Mildew/Mold |
the damaged degree is 0 |
the damaged degree is 1 |
Stain fungus |
the damaged degree is 1 |
the damaged degree is 2 |
|
Anti-corruption performance |
Grade 1 |
PACKING
Marks
Grade, type, production date, inspector code and date of inspection shall be marked on the product, or marks shall be stamped on the product based on supply-demand contract.
Package
The name of manufacturer, factory, post code, contact, brand, standard codes for the execution of products, specification & dimensions, grade, color, quantity and date of production and etc.
Transportation
The way of delivery of products shall be decided by both parties. Surface scratches and bumps shall be avoided during transportation, and the goods shall be safe from the influence of rain, dampness, exposure to direct sunlight and distortion.
Storage
The products shall be laid evenly and tidily, the surface of board shall not in direct contact with the ground, and measures shall be taken to avoid distortions.Based on their category, specification & dimensions, color and grades, they shall be piled up independently with special marks on every stack. The site for storage shall be free of rain, dampness, strong sunlight and shall be kept away from fire sources.