1. Duban Kayayyakin Kayayyakin Kayayyakin: A hankali bincika allon fiber don tabbatar da kauri iri ɗaya da yawa. Hakanan bincika lahani kamar lalacewa, lalata, kumburi, ko carbonization a gefuna da sasanninta.
2. Gwajin nutsewar ruwa: Idan zai yiwu, yanke ƙaramin katako na fiberboard kuma a nutsar da shi cikin ruwa na digiri 20 na awanni 24. Kula da canjin kauri da bayyanar ƙananan kusoshi yayin nutsewa don tantance juriyar ruwansa.
3. Gwajin wari: Yi hukunci akan warin fiberboard da wari. Wani wari mai ƙarfi yakan nuna ƙarar sakin formaldehyde, don haka yana shafar aikin muhalli na hukumar.