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BS EN 975-1:2009

BS EN 975-1:2009

Current

Current

The latest, up-to-date edition.

Sawn timber. Appearance grading of hardwoods Oak and beech

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

11-30-2010

Publisher

British Standards Institution

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Method of determination of sawn timber quality
  4.1 Rules for grading
  4.2 Grading principles
      4.2.1 Assessment of the quality
      4.2.2 Cases of un-edged boards
  4.3 Criteria to be taken into account
      4.3.1 General
      4.3.2 Criteria linked to the structure of the timber
      4.3.3 Sawing characteristics
      4.3.4 Warp
      4.3.5 Fungal and insect attacks
      4.3.6 Stains
      4.3.7 Other characteristics
5 Denomination of grades
  5.1 General
  5.2 Oak (Q)
  5.3 Beech (F)
6 Acceptance of batches
  6.1 Un-edged boards
  6.2 Square edged timber
7 Grading rules
  7.1 Grading face
  7.2 Un-edged boards
      7.2.1 Grading area
      7.2.2 Presence of a solitary feature (only one)
  7.3 Strips and square edged timber
      7.3.1 Knots
      7.3.2 Other features
  7.4 Baulks
  7.5 Appearance grading Tables
Bibliography

Describes the rules determining the quality of appearance graded sawn timber.

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: Oak sawn timber, in the following categories: Un-edged boards: individual selected pieces and boules; Square edged timber and strips (not exceeding 41 mm thickness); Baulks (sum of thickness + width ≥ 200 mm and thickness ≥ 80 mm). Beech sawn timber, in the following categories: Un-edged boards: individual selected pieces and boules; Square edged timber and strips; Prepared timber (dried timber).

Committee
B/543
DevelopmentNote
Supersedes 92/07542 DC. (11/2000) Supersedes 07/30171522 DC. (04/2009)
DocumentType
Standard
Pages
38
PublisherName
British Standards Institution
Status
Current
Supersedes

BS EN 1312:1997 Round and sawn timber. Determination of the batch volume of sawn timber

EN 1310 : 1997 ROUND AND SAWN TIMBER - METHOD OF MEASUREMENT OF FEATURES
EN 1312:1997 Round and sawn timber - Determination of the batch volume of sawn timber
EN 844-4 : 1997 ROUND AND SAWN TIMBER - TERMINOLOGY - PART 4: TERMS RELATING TO MOISTURE CONTENT
EN 1313-2:1998/AC:1999 ROUND AND SAWN TIMBER - PERMITTED DEVIATIONS AND PREFERRED SIZES - PART 2: HARDWOOD SAWN TIMBER
EN 844-11 : 1998 ROUND AND SAWN TIMBER - TERMINOLOGY - PART 11: TERMS RELATING TO DEGRADE BY INSECTS
EN 844-7 : 1997 ROUND AND SAWN TIMBER - TERMINOLOGY - PART 7: TERMS RELATING TO ANATOMICAL STRUCTURE OF TIMBER
CEN/TS 12169:2008 Criteria for the assessment of conformity of a lot of sawn timber
EN 844-3 : 1995 ROUND AND SAWN TIMBER - TERMINOLOGY - PART 3: GENERAL TERMS RELATING TO SAWN TIMBER
EN 844-1 : 1995 ROUND AND SAWN TIMBER - TERMINOLOGY - PART 1: GENERAL TERMS COMMON TO ROUND TIMBER AND SAWN TIMBER
EN 844-12 : 2000 ROUND AND SAWN TIMBER - TERMINOLOGY - PART 12: ADDITIONAL TERMS AND GENERAL INDEX
EN 1311 : 1997 ROUND AND SAWN TIMBER - METHOD OF MEASUREMENT OF BIOLOGICAL DEGRADE
EN 844-10 : 1998 FOUND AND SAWN TIMBER - TERMINOLOGY - PART 10: TERMS RELATING TO STAIN AND FUNGAL ATTACK
EN 844-6 : 1997 ROUND AND SAWN TIMBER - TERMINOLOGY - PART 6: TERMS RELATING TO DIMENSIONS OF SAWN TIMBER
EN 844-9 : 1997 ROUND AND SAWN TIMBER - TERMINOLOGY - PART 9: TERMS RELATING TO FEATURES OF SAWN TIMBER

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