This standard specifies how the suitablility for machine strength grading has to be certified. With this certification it shall be ensured that firms, which practice machine grading according to DIN 4074-1 and DIN 4074-5, have the required suitability.
Số hiệu tiêu chuẩn
DIN 4074-4
Tên tiêu chuẩn
Strength grading of wood - Part 4: Certificate of suitability for devices supporting visual grading of sawn timber
Ngày phát hành
2008-12-00
Tiêu chuẩn tương đương
OENORM DIN 4074-4 (2009-06-15), IDT * OENORM DIN 4074-4 (2009-02-15), IDT
Từ khóa
Blank forms * Bodies * Classifications * Construction materials * Forms (paper) * Load capacity * Maintenance * Mechanical engineering * Needles * Operation * Personnel * Proof of suitability * Quality * Quality assurance * Quality condition * Sawn timber * Softwoods * Specification (approval) * Structural timber * Suitability * Testing * Training * Verification * Wood * Design