1. Formaldehyde. Malinga ndi miyezo ya dziko lonse, malire a formaldehyde amatulutsa pa blockboard pogwiritsa ntchito njira ya chipinda cha nyengo ndi E1 Ochepera kapena ofanana ndi 0.124 mg/m³. Kusatsatiridwa-kwa ma blockboard ogulitsidwa pamsika okhala ndi miyezo yotulutsa formaldehyde makamaka kumakhudza mbali ziwiri: choyamba, utsi wa formaldehyde umaposa muyezo, womwe umabweretsa chiwopsezo chachikulu ku thanzi la anthu; chachiwiri, zinthu zina, ngakhale kuti kutulutsa kwawo kwa formaldehyde kuli mkati mwa mulingo wa E2, sikufika pamlingo wa E1, komabe kumatchedwa E1. Izi zimaonedwanso kuti -zosatsatira.
2. Transverse Static Bending Mphamvu. Mphamvu yopindika yosasunthika komanso mphamvu zomangirira zimawonetsa kuthekera kwa zinthu za blockboard kunyamula katundu ndikukana kupunduka popsinjika. Zifukwa zazikulu zolephera-kutsatizana ndi mphamvu zopindika zopindika zili patatu: choyamba, kuwonongeka kapena kuwola kwa zopangira zokha, zomwe zimapangitsa kuti pakhale mtundu wocheperako; chachiwiri, njira zosavomerezeka zolumikizirana panthawi yopanga; ndipo chachitatu, kumamatira kosayenera.
3. Kulimbitsa Mgwirizano. Kuchita kwa mgwirizano kumaphatikizapo magawo atatu a ndondomeko: nthawi, kutentha, ndi kupanikizika. Kuchuluka ndi njira yogwiritsira ntchito zomatira zimakhudzanso index ya formaldehyde emission index.
4. Chinyezi. Chinyezi chimawonetsa chinyezi cha plywood. Ngati chinyezi chili chochuluka kwambiri kapena chosagwirizana, mankhwalawa amatha kupunduka, kupindika, kapena kusafanana pakagwiritsidwa ntchito, zomwe zimakhudza momwe amagwirira ntchito.