Kev lag luam Standards Rau Felt Placemats

Cov qauv kev lag luam feem ntau ntsuas qhov zoo ntawm cov khoom siv placemats los ntawm qhov tsis xws li qhov hnyav ib square meter, thickness, thiab tensile lub zog. Piv txwv li, cov placemats hauv tsev feem ntau hnyav ntawm 100g thiab 500g thiab yog li 2-5mm tuab, muab kev tiv thaiv yooj yim; thaum muaj cov placemats tuaj yeem hnyav txog 20,000g thiab ntau dua 20mm tuab kom tiv taus cov khoom hnyav lossis siv nquag. Tsis tas li ntawd, kev phooj ywg ib puag ncig kuj yog ib qho tseem ceeb qhia; Cov khoom lag luam zoo yuav tsum tau xeem dhau los ntawm cov koom haum xws li SGS kom tsis txhob tso cov khoom phom sij xws li formaldehyde thiab cov hlau hnyav.