Technical Data for Richwood laminate flooringCharacteristicsTest StandardUnitStandard or RatingHDF density GB/T18102-2007KG/M3≥850Class 23EN13329 general residential use in living rooms and dining roomsClass 31EN13329 more varied locations, such as small offices and other light commercial locationClass 32EN13329 higher traffic commercial areas such as boutiques, busier offices, and restaurantAbrasion resistanceEN13329,Annex ERAC3≥2000AC4≥4000Formaldehyde E1EN717-1MG/M30.124Length ToleranceEN13329, Annex AMM≤0.5Width ToleranceMM≤0.2Thickness ToleranceMM≤0.5Squareness of the elementMM≤0.2Straightness of the surface layerMM/M≤0.3Flatness of the element%f w, concave≤ 0,15 % f l, concave≤ 0,50 %Openings between elements(mm)EN13329, Annex BMMaverage ≤ 0.15max ≤ 0.20Height difference between elements(mm)MMaverage ≤ 0.10max ≤ 0.15Dimensional variations after changes in relative humidityEN13329,Annex C MM≤0.9mmLight fastnessEN ISO105-B02 Blue wool scale ≥6EN 20105-A02 Gery scale ≥4Static indentationEN433MMNo visible changeSurface soundnessEN13329,Annex D N/MM2≥100Impact ResistanceEN13329,Annex FMMIC2Resistance to stainingEN438 5, No visible changesResistance to cigarette burnsEN438 4Effect of a furniture legEN424 No visible changesEffect of a castor chairEN425 No visible changesThickness Swelling rate(%)EN13329,Annex G%≤18Slip resistanceEN14041 DS