Material : Poplar, pine, hardwood ,etc Grade : E0, E1, E2 1.Quality standard a) density(g/cm3):0.5-0.8 b) percentage of water content(%): 5-13 c) adhesive: U type- same or better urea resin 2.Formaldehyde a) E1: 1.5mg/L below b) E2: 5.0mg/L below 3.Bending strength a) 15.0 type : 15t : E1 - Density: (N/mm): 0.15 above - Modulus of rupture: (N/mm): 0.24 above - Elastic: (N): face: 600 above/ edge: 300 above b) 13.0 type:15t: E2 - Density: (N/mm): 0.13 above - Modulus of rupture: (N/mm): 0.20 above - Elastic: (N): face: 550 above/ edge: 275 above 4.Required material volume to test its performance: 1200 x 1200= 1EA 5. E1: 15.0 type E2 : 13.0 type.