Structural use of timber - Code of practice for trussed rafter roofsBS 5268 3: 2006 covers the design, fabrication and use of trussed rafters for roofs. For the purposes of the standard, trussed rafters are assumed to be made from timber members of the same thickness fastened together by metal plate fasteners or plywood gussets. Trussed rafters usually span between external load bearing walls without the need for intermediate supports from internal walls, lintels or purlins. This standard provides recommendations on

General requirements for safety and design of programmable electrical medical systems

BS EN 15090:2006 specifies minimum requirements and test methods for the performance of three types of footwear for use by firefighters for general-purpose rescue

4 Symbol for the chemical composition of all-weld metal

Protection against excessive temperatures and other hazards

Determination of the lower yield strength

straightness

Bolted flange connections

lampholders and Iampcaps

the ISO 11138 series

Annex B (normative) System for quality assurance and quality control

BS EN SIO 6892-1 is the standard that brings together the European and international methods of testing metallic materials at ambient conditions

Ease of installation