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Boiling Water Proof (BWP) grade blockboard inspection,quality control,assurance,factory auditing,sourcing,manufacturing

BWP GRADE
Parameters Specified value Observed value
Adhesion of plles Pass Standard Excellent
Resistance to water Pass Standard Excellent
Modules of elasticity (N/sq.mm) 5000 5000-6500
Modules of rupture (N/sq.mm) 50 50-60
Dimensional changes caused by humidity d L 1/150 d L 1/150
Mycological test No de-lamination N.A.
Preservative treatment Borax treatment of frames Borax treatment of frames.
Glue Line Treatment.
CCB Treatemnt of Boards
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