Random inspection items and common quality defects of density fiberboard in November 2022 In this spot check of 80 batches of MDF products produced by 17 enterprises, 12 batches of MDF products were found to be unqualified, and the rate of unqualified products was 15%, 8.1 percentage points lower than the last spot check. The static bending strength, internal bonding …

Quality supervision and spot check of particle board products and common quality defects According to the requirements of such standards as Chipboard (GB/T 4897-2015) and Indoor Decoration Materials – Wood based Panels and Their Products – Limits of Formaldehyde Release (GB 18580-2017), spot checks were conducted on the water absorption thickness expansion rate, static bending strength, internal bonding strength, surface …

Random inspection of MDF product quality supervision and common quality defects Common spot checks are carried out according to the requirements of such standards as Medium Density Fiberboard (GB/T 11718-2009) and Indoor Decoration Materials – Wood based Panels and Their Products – Limits for Formaldehyde Release (GB 18580-2017). The water absorption thickness expansion rate, static bending strength, internal bonding strength, …