Floor Sourcing Services
Home ASK Us Reference Standards WPC Flooring Standard GB/T24508-2009

WPC Flooring Standard GB/T24508-2009

WPC Flooring Standard of Size, Appearance, Defects, Physical And Chemical Performance And Lab Testing methods.

Have A Question?
  • Reference Standards Detail


QUALITY CONTROL STANDARD-WOOD PLASTIC COMPOSITE FLOORING

 

SCOPE

 

This standard specifies the requirements of WPC floor for export, test methods, inspection rules and packaging, transportation and storage requirements

 

TECHNICAL REQUIREMENTS

 

Size And Deviation

Length: Indoor ≤0.1% of length; Outdoor ≤0.2% of length

Width: Indoor ≤1.0mm, the difference between the maximum and minimum values ≤0.6 mm;

            Outdoor ≤1.2mm, the difference between the maximum and minimum values ≤0.8 mm

Thickness: Indoor ≤0.8mm; Outdoor ≤1.2mm

Stucture: PU/UV Coating+Wear Layer+Decoration Layer+Vinyl Layer+WPC Core +Cork or EVA

Bevel: Chamfer Angle is 45 degrees, chamfering width (i.e., chamfering slope width) is 0.5 mm

Straight Angle: Qmax ≤0.30mm

Straightness: Smax ≤0.30mm/m

Model of click: should be the same as the confirmed steel model

Twist: Indoor ≥1.2mm/m; Outdoor ≥1.5mm/m

Warp: extending direction≤ 6.0mm/m

Gap: average value≤0.3 mm, Gmax ≤0.5 mm

Height difference: average value ≤0.10mm, Hmax ≤0.15mm

RE:

1.No tongue WPC flooring does not required height difference and gap; If have tongue and groove, the width of tongue should be more than 3mm.

2.For holloe wpc flooring, the weight should be more than 95% of solid wpc flooring.

 

WPC Flooring Appearance & Quality Requirements

 

Wood-Plastic Composite Flooring Without Coating

Item

Superior product

Qualified product

Color unmatching

It is allowed if not too obvious

Surface unevenness

Not allowed

It is allowed if not too obvious

Split

Not allowed

Spots,dirt and similar surface defects

4mm², allowable amount is 1pc/m

4mm², allowable amount is 3pcs/m

Blister

Not allowed

Bubble

Not allowed

Trace grain

Not allowed

It is allowed if not too obvious

Incomplete sander-polishing

Not allowed

Embossing is not clear or incomplete

Not allowed

Tongue and corner deformity

Not allowed

The board face concave and convex is only used for judging the plane plastic wood floor

 

Coating Wood-Plastic Composite Flooring

Item

Superior product

Qualified product

Color unmatching

Not allowed

It is allowed if not too obvious

Gloss unevenness

Not allowed

3% the area of the board

Split

Not allowed

Scratches on coating

Not allowed

Bubble on coating

Not allowed

Blister

Not allowed

Exposed undercoat

Not allowed

Wrinkling

Not allowed

5% the area of the board

Pin holes

Not allowed

Allowable amount is 3 pcs/m

Nib

Not allowed

Allowable amount is 2 pcs/m

Tongue and corner deformity

Not allowed

 

Faced Wood-Plastic Composite Flooring

Item

Superior product

Qualified product

Frosting mark and water mark

Not allowed

3% the area of the board

Scratches

Not allowed

Press mark

Not allowed

Previous spots of impregnated paper

Not allowed

Gloss unevenness

Not allowed

3% the area of the board

Spots,dirt and similar surface defects

Not allowed

10mm², allowable amount is 1pc/m

Blister

Not allowed

Bubble

Not allowed

Tearing of impregnated paper

Not allowed

Bare substrate spots due to defective surface covering

Not allowed

Fissure on the surface

Not allowed

Delamination

Not allowed

Tongue and corner deformity

Not allowed

 

Backing Of Wood-Plastic Composite Flooring

Should be smooth, no obvious uneven parts, no cracks, no tenon and missing edge horns. Scratches, bubbles, 

impurities,trace grains, gloss unevenness are allowed if they does not influence daily use.

 

WPC Flooring Physical And Chemical Performance Requirements

 

Item

Wood-plastic composite flooring without coating

Coating wood-plastic composite flooring

Faced wood-plastic composite flooring

 

Bending failure load

Public places ≥ 2500NNot in public places ≥ 1800N

Public places ≥2200NNot in public places ≥1500N

The normal temperature falling ball impact

Porkmark diameter 12mm

The low temperature falling ball impact

No fissure at -10℃

-

Density

0.85g/cm³

Water absorption rate

Foaming base material ≤10%Non-forming base material ≤3%

Water suction size change rate

Length direction 0.3%

Width direction 0.4%

Thickness direction 0.5%

Dimensional changes after heating

Front and back

±1%

±0.8%

The difference value between two dimensional changes

 0.5%

0.4%

Resistance to heat and cold circulation

Surface appearance

No fissure, no bubbling

Scale change

0.5mm

Freeze thawing resistance

Bending failure load retention rate ≥80%

Contamination & Corrosion resistance of surface

-

Not obvious change

Surface bond strength

-

-

Average 1.0MPamin 0.8MPa

Surface scratch resistance

-

-

Surface decorative pattern is not scratched under 4.0N's force.

Film adhesion

-

Level 2 or higher

-

≤0.15g/100r

Value ≤0.15 g/100r, and paint film did not grind through

-

Abrasion resistance

-

-

4000r

Skid resistance value

 

35%

-

Creep recovery rate

75%

-

-

Fungi corrosion resistance

rate of weight loss 24%

Aging performance

bending load retention rate ≥80%

Color fastness to light (gray card)

level 4 or higher

Formaldehyde release

level E0 0.5level E1 1.5

For the wood plastic floor is used on the stairs, thus the bending load should be greater than 3338N


Note 1: indoor places without high humidity have no requirements for freezing-thawing resistance property and corrosion resistance to fungal of wood plastic flooring                                                                                       

Note 2: skid resistance value of wood plastic flooring is not required in places without high humidity                                        

Note 3: wood plastic floor for indoor use has no requirements for the aging performance                                                                          

Note 4: wood plastic floor for outdoor use has no requirements for the color fastness to light

 


PACKING

 

Product Mark

Before the products are stored, they should be tagged in proper parts with their product models, trademarks, production dates, etc.

 

Packing Mark

The standard codes , factory name, address, product name, production date, trademarks, specifications, formaldehyde release sign, type, grade, quantity, etc.

 

Package

A product shall be packed based on its category, specification and grade. The enterprises shall provide detailed instruction books and manuals according to the characteristics of a product. The package shall protect products from being hit,scratched or stained. Packing requirements shall only be settled after negotiation between two parties.



A free consultation

We focus on floor inspections only, we try to help you to solve all the questions in flooring line.

Related Products

Parquet Flooring Parquet Flooring

Multiple Wood Flooring Standards GB/T 18103-2000

Standard Specification for Engineered Wood Flooring , Engineered Wood Flooring Appearance, Engineered Wood Flooring Quality Requirements.

cork flooring reviews cork flooring reviews

Cork Flooring Standard

Standard Specification for Types Of Cork Flooring, Cork Floor Tile Inspection, Cork Flooring Problem.

Strand Woven Bamboo Flooring Strand Woven Bamboo Flooring

Strand Woven Bamboo Flooring Standard GB/T 30364-2013

Standard Specification for Outdoor use the anti-corrosion of real wood floor, Outdoor use the anti-corrosion of real wood floor Appearance And Quality Requirements.

Hardwood Flooring Hardwood Flooring

Hardwood Flooring Standard

Standard Specification for Hardwood Flooring,Hardwood Flooring Appearance, Hardwood Flooring Quality Requirements.

Laminated Floor Laminated Floor

Laminate Floor Standard GB/T 23471-2009

Standard Specification for Laminate Floor, Laminate Floor Appearance And Quality Requirements.

High Density Fiberboard High Density Fiberboard

HDF Board Standard GB∕T 31765-2015

This standard specifies the definition, category, requirements,testing manners,rules of inspection, marks, package, transportation and storage of high density fiberboard.

Outdoor WPC Flooring QC Outdoor WPC Flooring QC

QUALITY CONTROL STANDARD-WOOD PLASTIC COMPOSITE FLOORING OUTDOOR 

QUALITY CONTROL STANDARD-WOOD PLASTIC COMPOSITE FLOORING OUTDOOR  SCOPE   This standard specifies the requirements of WPC floor for export, test methods, inspection rules and packaging, transportation and storage requirements.    TECHNICAL REQUIREMENTS  Size And Deviation  Length 0~+10mm, Negative tolerance is not allowed Width ±1mm, the difference between the maximum and minimum values ≤3 mm Thickness thickness<25mm, ±0.5mm thickness≥25mm,±1.0mm Tolerance on wall thickness ±0.5mm Structure wood plastic composite Bevel need negotiation by the Customer and factory Straight Angle ≤ 0.30mm Straightness ≤ 1.0mm Model of click should be the same as the confirmed steel model Note: No tongue WPC flooring does not required height difference and gap; If have tongue and groove, the width of tongue should be more than 3mm. For wpc flooring, the weight should be more than 95% of WPC weight which two parts agreed.   WPC Flooring Appearance & Quality Requirements  In addition to the design effect, the color should be uniform, the surface is flat, no scratch, no obvious concave and convex, the impurity, the end should be straight, no burr. Item Superior product Qualified product Color unmatching It is allowed if not too obvious Surface unevenness Not allowed It is allowed if not too obvious Split, crack Not allowed Spots,dirt and similar surface defects ≤4mm², allowable amount is 1pc/m ≤4mm², allowable amount is 3pcs/m Blister Not allowed Bubble Not allowed Trace grain Not allowed It is allowed if not too obvious Surface granular Not allowed It is allowed if not too obvious Incomplete sander-polishing Not allowed Tongue and corner deformity Not allowed The board face concave and convex is only used for judging the plane plastic wood floor   WPC Flooring Physical And Chemical Performance Requirements   Test Item Test method Standard  Water absorption of 24h At room temperature, the immersion time of the sample was 24h±15min ≤2.0%  State after heating( 120℃) (120±2)℃,(30+3)min No bubbles, cracks, pitting  Size change rate after heating(100℃) (100±2)℃,(60+3)min ±1.0% Density   ≥1.2g/cm³ surface abrasion resistance  100*100*1pc sample, install it on the wear tester. When grinding wheel weight (27±2) g, width (51.4±0.6) mm, sand paper 180#0/3 condition, wear 100 turns, remove the specimen from the surface and weigh it ≤0.10g/100r Shore hardness (D type) GB/T2411 ≥60 nail-holding ability surface GB/T 17657-1999 ≥1300N  side ≥1200N Four point bending strength QB/T 4161-2011 (appendix)A ≥18Mpa Four point flexural modulus of elasticity ≥1800Mpa Freeze thawing resistance 24h in room temperature water, then put in ( -29±1) ℃24h, finally put 24h in room temperature environment, then place room temperature 24h, measure bending strength load No skin, no crack, bending strength retention ≥90% degradation testing (1000h) The black label temperature is (65 + 3) C, relative humidity is (50 + 5)%, irradiance is 0.35W/m2@340nm, continuous illumination. Cycle period is 120min, where 102min does not spray water, 18min spray water, aging time is 1000h. The surface of the sample should not be seen by the naked eye, the skin or the crack, the hollow and the uneven color change. 色差color difference:ΔE≤9 Formaldehyde release GB/T17657-1999 ≤0.5mg/L 可溶性铅含量Soluble lead content QB/T 4161-2011 ≤90mg/kg 1. Not test the nail holding ability of a hollow WPC 2. Not test flexural strength and flexural modulus of elasticity when the WPC thickness over 50mm 3. Should grinding treatment of flooring surface when test degradation testing surface color change   PACKING  Product Mark Before the products are stored, they should be tagged in proper parts with their product models, trademarks, production dates, etc. Packing Mark The standard codes , factory name, address, product name, production date, trademarks, specifications, formaldehyde release sign, type, grade, quantity, etc. Package Should be fastened firmly, with plastic film or other soft material package, you need to use other special packing methods agreed by both sides of supply and demand. Transport It should be flat and stacked to avoid heavy pressure, rain prevention and sunscreen, light load and light load.

Plywood Plywood

Plywood Standard GBT 9846-2015

This standard specifies the definition, category, requirements,testing manners,rules of inspection, marks, package, transportation and storage of plywood for general use.

OUR

NEWSLETTER

   

A free consultation

We focus on floor inspections only, we try to help you to solve all the questions in flooring line.