1. Formaldehyde hmanga siam a ni. National standard-ah chuan climate chamber method hmanga blockboard-a formaldehyde emission limit chu E1<=0.124 mg/m3 a ni. Market-a blockboard hralh chhuah formaldehyde emission standard zawm lohna hian thil pahnih a huam ber a ni: pakhatnaah chuan formaldehyde emission hian standard a pel a, mihring hriselna atan hlauhawmna nasa tak a thlen a pahnihnaah chuan, thil siam ṭhenkhat chu an formaldehyde emission chu E2 level chhungah awm mah se, E1 level an thleng lo va, chutih rualin E1 tia label an ni. Hei hi non-compliant anga ngaih a ni bawk.
2. Transverse Static Bending chakna a ni. Transverse static bending strength leh bonding strength hian blockboard products te hian load an phur thei a, stress hnuaia deformation an do thei tih a tarlang bawk. Transverse static bending strength-a non-compliance chhan ber chu chi thum a ni: pakhatnaah chuan raw materials ngeia chhiatna emaw, chhe emaw, chu chuan core quality tha lo a thlen a pahnihnaah chuan, siam chhuah laiin splicing technique tha lo tak tak; leh pathumnaah chuan, glue dik lo.
3. Bonding chakna. Bonding performance hian process parameter pathum a huam ber a, chungte chu hun, temperature leh pressure te an ni. Adhesive hman zat leh hman dan hian formaldehyde emission index a nghawng bawk.
4. Tuihna awm zat. Moisture content hian plywood a moisture awm zat a tarlang a ni. Moisture content a tam lutuk emaw, a inthlau lutuk emaw chuan hman laiin product chu a deform thei a, a warp thei a, a inthlau thei bawk a, chu chuan a performance a tichhe thei a ni.