This document defines a method of assessment of drying quality. It applies to a lot of dried sawn timber, a lot of dried planed timber and a lot of dried sawn timber surfaced by other means. It applies to both softwood and hardwood with a thickness not greater than 100 mm.
The quality of drying is expressed in terms of target and average moisture content of the lot as well as defining the moisture content variation between individual pieces expressed as allowable upper and lower limits.
An option for specifying the degree of case-hardening is included.
NOTE 1 Other features related to drying, e.g. checking, distortions, stain, etc., are specified in documents for visual
grading of sawn timber or in product specifications and are not covered by this document.
NOTE 2 In the following the term "sawn timber" is used for all dried timber covered by this the scope.
BS EN 14298:2004 Referenced Document
EN 13183-1 Moisture content of a piece of sawn timber - Part 1: Determination by oven dry method
EN 1438 Symbols for timber and wood-based products
EN 844-12:2000 Round and sawn timber - Terminology - Part 12: Additional terms and general index*， 2024-04-18 Update
EN 844-3:1995 Round and sawn timber - Terminoloy - Part 3: General terms relating to sawn timber
EN 844-4:1997 Round and sawn timber - Terminology - Part 4: Terms relating to moisture content