TG4:19 had amendments predominantly in relation to the orientation of ring bolts where current thinking is that settlement is probably greater than side wind loads so reduces potential shear loads on the bolt. Other minor changes were cosmetic. A recent update in April 2019 saw the removal of one reference only when the guidance was reissued as TG4:19.
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This document aims to give advice on 38x225 BS 2482:2009 1.5 m support span boards | 38x225 BS 2482:2009 1.2m support span boards | 63x225 BS 2482:2009 2.5m support span boards | 38x225 BS 2482:1981 1.5 m support span boards.
This guidance gives details of the Fire Retardant treatments available for timber scaffold boards and battens.
Intended predominantly for engineers and designers, this A4 sized 206-page document provides technical data, commentary, and source material for use by competent and suitably qualified scaffold designers in circumstances which are outside the scope of standard solutions provided in the TG20:13 Operational Guide and TG20:13 e-Guide software. (Price shown includes £6 Postage & Packaging)
This guidance gives details of the stress corrosion cracking (SCC) that can occur in certain materials when subjected to tensile stress and specific corrosive environments. Although rare in our industry, it can lead to unexpected sudden failure of certain metals. Whilst chemical environments and alloys are highly specific, this guidance explains the process by which SCC can occur and advises that specialist advice may be needed where SCC is possible or has occurred in the past.
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