Testing item | Standard | Wualification | KD wood flooring | Commerciallyavailable composite wood flooring |
Flammability test | CNS 7614 | Length of carbonization ≦ 5cm; No remaining flame;1 minute after, there will be no afterglow | Grade1 | Length ofcarbonization >5cm |
Adhesion | CNS 10757 | 10 points(no delaminating) | 10 points | Seriouslydelaminating |
Alkali Resistance | CNS 10757 | Unchanged(Qualified) | Normal | Fading, and flaking paint |
Acid Resistance | CNS 10757 | Unchanged(Qualified) | Normal | Fading, and flaking paint |
Stain Resistance | CNS 10757(95% Ethanol 72hr、offee72hr) | Unchanged(Qualified) | Unchanged | Difficult to remove atains |
Cigarette- burning Resistance | CNS 11367 | No cigaretteburning、no fading、no cracking and no bubble mark | Unchanged | Cigarette burning、 fading、cracking and bubble mark |
Moisture content | CNS 11342 | ≦ 14% | 8.90% | 5~25% |
Tongue-and-groove notch | CNS 11342 | No>1mm gap | No>1mm gap; Accessibility | Rough; 3~8mm gap |
Soakingdelaminating test | CNS 11342 | Remaining length of laminating > 2/3 | No delaminating | Length of delaminating >1/3 |
Height difference between joints | CNS 11342 | ≦ 0.3mm | 0.2mm | 0.3~1mm |
Abrasion test | CNS 11342 | Base material doesnot reveal. Less thanor equal to 0.15g abrasion loss for each 100 rotations | Base material does not reveal 0.02g/100 rotations | Base material reveal. Over 0.15g abrasion loss for each 100 rotations |
Flexure property | CNS 11342 | The difference between the two deflections ≦ 3.5mm | Qualified (1.9mm) | 5~15mm |
Thickness swellingrate due to water absorption | CNS 11342 | Thickness swellingrate due to water absorption ≦20% | 7.84% | 20~40% |
Emission of formaldehyde | CNS 11342 | ≦1.5 mg/L | Undetected | 1.5~20 mg/L |
Green Building Materialradioactivity | Green BuildingMaterial testing method | <0.2 μSv/h | Qualified(0.08~0.13 μSv/h) | May contain radioactive materials |
Heavy metals | Green BuildingMaterial testing method | T-Ag <0.05 mg/LT-As <0.3 mg/LT-Cd <0.3 mg/LCr+6 <1.5 mg/LT-Cu <0.15 mg/LT-Hg <0.005 mg/LT-Pb <0.3 mg/L | Qualified | Contain toxicchemicals like Ag、Pb、Cd |
Formaldehydeand TVOC | Green BuildingMaterial testing method | VOC emission standard: E2 | Qualified (TVOC 0.053;Formaldehyde Undetected) | TVOC0.2~20 mg/m2.hr Formaldehyde 0.1~10 mg/m2.hr |
Asbestos Testing | CNS 13970 | contain no asbestos | Undetected | May contain asbestos |