This standard specifies the classification, definition, inspection and calculation methods of visible defects in logs for coniferous and hardwood sawn timber. This standard is applicable to logs of coniferous and broad-leaved trees, and the original logs should also be implemented as a reference.
GB/T 155-2006 Referenced Document
GB/T 11917 Terms in timber sawing technology*, 2009-02-23 Update
GB/T 15787 Terms in log inspection*, 2017-12-29 Update