Structural use of timber - Code of practice for trussed rafter roofsStructural use of timber Part 3: Code of practice for trussed rafter roofs Executive summary Recommendations and guidance on the design, fabrication and use of trussed rafters for roofs. Abstract This part of BS 5268 provides guidance on the design, fabrication and use of trussed rafters for roofs in service classes 1 and 2. This British Standard provides guidance on structural analysis methods, engineering design criteria and design by testing.

The determination of the characteristics of the design fire from ignition through to decay is used by other Sub-systems as inputs into calculations of events such as time of fire spread from enclosure [PD 7974-3 (Sub-system 3)] and time to activation of suppression systems [PD 7974-4 (Sub-system 4)]

BS 8520-1 specifies requirements for equipment for the controlled wetting of asbestos-containing material (ACM) by injection or spraying of liquid to suppress the release of airborne asbestos fibres

and testing on general requirements common to the antechamber

BS 7958 gives recommendations for the operation and management of Closed circuit television (CCTV) within a controlled environment

rotating machines

BS EN 60335-2-39 deals with the safety of electrically operated commercial multipurpose cooking pans not intended for household use

ISO 20677 defines minimum structural and operational requirements for writing and reading ICC profiles

Guidance on sampling of drinking water distributed by tankers or means other than distribution pipes

This European Standard specifies criteria to categorize road traffic noise reducing devices according to basic mechanical performance under standard conditions of exposure

and ISO/IEC 20000-1 for service management

exercising and learning from crises

The requirements for the composition of helium for making breathing gas mixtures has been added