NSSS

The National Structural Steelwork Specification (NSSS) is a specification prepared by all sections of the steelwork industry that can be incorporated into all forms of contract covering the technical aspects of structural steelwork in buildings. The 5th edition of the NSSS was prompted by the development of the forthcoming European standard for the fabrication and erection of structural steelwork, BS EN1090-2. It is a halfway house between version 4 of the NSSS and this new European standard. The changes include updating the reference standards for bolts and welding,aligning the tolerances with the National Structural Concrete Specification, a reference to the welding quality standard BS EN ISO 2834-3 and by reference the welding coordination standard BS EN ISO 14731, a new section giving options for post-galvanising inspection to avoid Liquid Metal Assisted Cracking, a new Annex giving practical advice on the visual inspection of welds and a revision of the hold times in Annex A.

To view the NSSS click here

This Commentary on the National Structural Steelwork Specification (4th Edition) gives users guidance and information about the specification document and the philosophy behind its provisions.

To view the Commentary on the NSSS click here:

To assist with the transition from national to European standards and with the introduction of CE Marking, BCSA is developing a CE Marking version of the National Structural Steelwork Specification for Building Construction which will be available during 2009. The BCSA has also published the ‘Guide to the CE Marking of Structural Steelwork’ copies of which can be obtained from BCSA or downloaded free of charge from BCSA’s web site.
 
Guide to the CE Marking of Structural Steelwork