This specialised division focuses on the quality assessment of sawn timber. The tasks range from the development of new methods for stress grading of sawn timber to the inspection of the production of stress graded sawn timber and the attainment of the CE-certification and the quality control of planed timber.
Over the last few of years machine stress grading of sawn timber has become a central research focus at Holzforschung Austria. Together with the industry, new procedures and grading equipment have been developed and implemented in the field. Currently the research focus lies on stress grading of sawn timber at higher wood moisture levels by means of laser interferometry as well as on a non-contact method for identifying wood grain direction via microwave radiation.
Within this specialised division, testing and plant inspections according to international, European and national standards and regulations are carried out. Together with the West Coast Lumber Inspection Bureau (WCLIB), initial qualification tests for visual and mechanical grading of timber according to the American standards are being performed. Companies which produce sawn timber for the Australian market are inspected according to the Australian standards.
The accreditation (or the notification whenever a harmonised standard or guideline serves as the basis) covers the following test methods:
Stress grading of sawn wood: