1. API 579/ ASME-FFS-1 (2015) Fitness-for-service. ASME, New York
2. ASTM E1921 (2015) Standard test method for determination of reference temperature. T0, for ferritic steels in the transition range
3. BS 7910 (2013) Guide to methods for assessing the acceptability of flaws in metallic structures’ amendment 1 and corrigendum 1, 2015. British Standards Institution, London
4. BS PD 6493 (1980) Guidance on some methods for the derivation of acceptance levels for defects in fusion welded joints. British Standards Institution, London
5. BS PD 6493 (1991) Methods for assessing the acceptability levels of flaws in fusion welded structures. British Standards Institution, London