DIN Standards Committee Building and Civil Engineering
ISO 9709
Structural timber - Visual strength grading - Basic principles
Bauholz für tragende Zwecke - Visuelle Festigkeitssortierung - Grundlegende Anforderungen
Responsible national committee
NA 005-04-01 AA - Timber structures (national mirror committee for CEN/TC 250/SC 5, ISO/TC 165)