BS EN 975-1:2009 pdf download – Sawn timber — Appearance grading of hardwoods Part 1: Oak and beech 1 Scope This European Standard specifies the rules determining the quality of appearance graded sawn timber. It describes various grades of temperate hardwood rough sawn timber and regularized timber for which it lays down denominations and definitions. It also gives rules for composition and acceptance of batches. This standard gives minimum requirements for each grade classification. Sawn timber not included within limits given in this standard may be defined, if necessary, by contract specifications established on the basis of this standard. This standard applies to grading of green and dried timber. Characteristics apply at the time of grading. This standard does not apply to the strength grading of structural timber or to sawn timber for pallets. This standard is applicable to the following products: a) Oak sawn timber, in the following categories: 1) Un-edged boards: individual selected pieces and boules; 2) Square edged timber and strips (not exceeding 41 mm thickness); 3) Baulks (sum of thickness + width ≥ 200 mm and thickness ≥ 80 mm). b) Beech sawn timber, in the following categories: 1) Un-edged boards: individual selected pieces and boules; 2) Square edged timber and strips; 3) Prepared timber (dried timber). 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 844-1:1995, Round and sawn timber – Terminology – Part 1: General terms common to round timber and sawn timber EN 844-3:1995, Round and sawn timber – Terminology – Part 3: General terms relating to sawn timber EN 844-4:1997, Round and sawn timber – Terminology – Part 4: Terms relating to moisture content EN 844-6:1997, Round and sawn timber – Terminology – Part 6: Terms relating to dimensions of sawn timber EN 844-7:1997, Round and sawn timber – Terminology – Part 7: Terms relating to anatomical structure of timber EN 844-9:1997, Round and sawn timber – Terminology – Part 9: Terms relating to features of sawn timber EN 844-10:1998, Round and sawn timber – Terminology – Part 10: Terms relating to stain and fungal attack EN 844-11:1998, Round and sawn timber – Terminology – Part 11: Terms relating to degrade by insects 3 Terms and definitions For the purposes of this document,...
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