: Shrinkage values for thickness and width based on final moisture content.
The standard applies to softwood lumber (coniferous wood) produced via tangential, radial, or mixed sawing methods. It establishes mandatory shrinkage allowances for thickness and width to compensate for volume loss during the drying process. gost 67821 75
Below is a summary of the core text and requirements based on official documentation from sources like Rosstandart and Docs.cntd.ru . : Shrinkage values for thickness and width based
: Verification values for actual thickness and width at various moisture levels. Full Text Access gost 67821 75
: Nominal dimensions are typically set for moisture levels of 15% or 20% .
: Moisture content must be determined in accordance with GOST 16588 .