Background information to the National Annex to BS EN 1991-1-4 and additional guidancePD 6688 1 4: 2009 Background information to the National Annex to BS EN 1991 1 4 and additional guidance When there is a need for guidance on a subject that is not covered by the Eurocode, a country can choose to publish documents that contain non contradictory complimentary information that supports the Eurocode. Published Document (PD) 6688 1 4 is a background paper that gives non contradictory complementary information for use in the UK with BS EN

resistance to penetration by flame

BS EN 14989-1:2007 covers vertical air/flue terminals with metal flue ducts for chimneys for roomsealed heating applications meaning the combination of flue duct and air supply duct needed for the correct functioning of a C6 roomsealed appliance

ISO 4026:1993

For service industries

BS EN ISO 17660-1 is applicable to the welding of weldable reinforcing steel and stainless reinforcing steel of load-bearing joints

resulting in a methodology which is used to design the set of security mechanisms for specific applications

BS 5702-2 distinguishes between the use of control charts to achieve product control as opposed to steering a process (reducing variation and making estimates of

installation and operation of umbilicals and associated ancillary equipment for the petroleum and natural gas industries

BS 8800:2004 will:

made from unalloyed and alloyed steels

• Physical requirements

BS EN 14475 guidelines enable you to build reinforcement structures that meet the stated standards for safety