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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

$125.00$251.46


Published:30/11/1988

Pages:46

File Size:1 file

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.

All current amendments available at time of purchase are included with the purchase of this document.

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