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Because this is a technical legislative document, the full text—including the precise mathematical tables—is best viewed via official PDF repositories: : Rosstandart (Russian) Full Text (PDF) : Meganorm or Stroyinf Annotated Version : Docs.cntd.ru

: Verification values for actual thickness and width at various moisture levels. Full Text Access gost 67821 75

: If the wood's moisture content is higher than the standard nominal moisture level, the actual dimensions must be larger than the nominal ones by the established shrinkage value. Because this is a technical legislative document, the

The full document contains several critical lookup tables used by manufacturers: Shrinkage value ) is a Soviet-era state standard,

(officially Coniferous sawn timber. Shrinkage value ) is a Soviet-era state standard, still active in many CIS countries, that defines the shrinkage values for softwood lumber to ensure they meet nominal dimensions after drying.

: Nominal dimensions are typically set for moisture levels of 15% or 20% .