If an ISO (International Organization for Standardization) standard is also an EN ISO standard, then it is a European standard just like any other EN (European) standard. As illustrated ...
Answered by Peter G. Schild, SINTEF Building & Infrastructure
Answered on 16 December 2009
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It is not presently mentioned in CEN standards. Other countries might be using the same default level as France in their energy performance calculation standards, but there is no reason to ...