Document Status
Current
Supplement
Core Supplement
Series
Advisory Notes
Abstract
Provides clarification for the recent changes within the 6th edition of the ASFP Yellow book, relating to critical steel temperature, to align more closely with the steel Eurocodes, multi-temperature analysis (MTA), and structural fire engineering. Presents simplified default critical temperatures and a new approach for cellular beams.
History
Current Issue: January 2026. Updated to correct reference to Advisory Note 24.
Subjects
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Special subject areas
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Fire
Publisher History
Formed in 1975, the Association for Specialist Fire Protection currently represents the major U.K. based specialist manufacturers and installers of structural passive fire protection systems. They produce technical information to ensure built in fire protection in buildings.
Information
NBS
NBS has produced specification systems and information products for construction industry professionals for more than 40 years. The National Building Specification is the recognised UK national standard and is used by over 5,000 organisations. NBS is part of RIBA Enterprises Ltd.
Accuris
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