M 343-2004 责成欧洲标准化委员会,欧洲电工标准化委员会和欧洲电信标准协会详细阐述并采纳建筑物综合能效计算方法的标准和环境影响评估标准的委托书[参考:EU 2002/91/EC]
Mandate to CEN, CENELEC and ETSI for the elaboration and adoption of standards for a methodology calculating the integrated energy performance of buildings and estimating the environmental impact