BS 4978:1988

Specification for softwood grades for structural use

BSI Group , 11/30/1988

Publisher: BS

File Format: PDF

$132.00$264.16

Description

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.