The Court of first instance have reminded us this April that absolute obligations can sit side by side with a specified level of skill and care in the case of MT Hojgaard E.ON .

Furthermore the existence of an express warranty on fitness for purpose can trump an obligation to comply with a specification, even if there is an error in the specification.

Therefore it pays to look at your contract wording to see what you are committing to.  The MT Hojgaard case involved the design, fabrication and installation of off shore wind turbines. There were problems with their foundations, and  warranted service life connected to an error in an international standard followed for the design. The Court found the contractor had not provided the intended service life.