Background information to the National Annex to BS EN 1991-1-4 and additional guidance Ingestion-build-44616 What is BS EN 681

What is BS EN 681 - Material requirements for vulcanized rubber seals about

documentation and marking of shell boilers as defined in EN 12953-1

BS EN 12390-2:2009 Testing hardened concrete

- new requirements for routine tests

Background information to the National Annex to BS EN 1991-1-4 and additional guidance Ingestion-build-44616 What is BS EN 681PD 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