sękatość

13:58 Oct 12, 2019 

When Dimension Lumber graders learn how to grade knots on the production line they use a technique called Total Measurement (TM). This technique allows graders to estimate very accurately, without measuring, the size of the knots in the cross-section and to correctly and quickly determine what grade they will make. They learn what parts of the knot to measure and then compare the total measurement that they see to the width of the piece. The TM technique is widely accepted as the easiest and most accurate way to determine the grade of the knot without measuring. Once fully understood the TM method of grading knots can be used by lumber graders and lumber inspectors as well as by the buyers and end users of lumber. Total Measurement (TM) technique is a powerful method to determine the grade of a knot without measuring and now even you can learn how to grade knots this way!

- https://blog.spib.org/total-measurement-understanding-knots-...