90.20 Standard under periodical review Jan 15, 2025
ISO
ISO/TC 165 Timber structures
International Standard
91.080.20 Timber structures
Published
This document specifies methods of evaluating the effectiveness of glued laminated timber face and edge bonds within a manufacturing plant by cleaving of the glue line in both dry and wet conditions. It is not intended that it be used for initial type testing where cyclic delamination or block shear is preferred. It is based on the principle that, provided minimum wood failure percentages are met, then the bond strength exceeds the perpendicular to the grain tension strength of the under-lying substrate and therefore the bond is not the weak element limiting the integrity of a glulam assembly.
WITHDRAWN
ISO 19993:2007
PUBLISHED
ISO 19993:2020
90.20
Standard under periodical review
Jan 15, 2025