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  • BS 4978:1988

BS 4978:1988

Specification for softwood grades for structural use

BSI Group , 11/30/1988

Publisher: BS

File Format: PDF

$132.00$264.16


Standard By:BSI Group , 11/30/1988
Published:11/30/1988
Pages:46
ISBN(s):0580170756
File Size:1 file
Language:English
Note:This product is unavailable in Ukraine, Russia, Belarus
Specifies 2 methods of grading softwood namely, visual and machine stress grading. Permissible limits of characteristics for: (a) 2 visual stress grades - General Structural (GS) and Special Structural (SS); (b) 3 laminating grades - LA, LB and LC. Requirements for machine stress grades; Machine General Structural (MGS), Machine Special Structural (MSS), M50 and M75 and Strength Classes are specified. Also includes performance requirements for machines which grade softwood.

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