报告指出了如何在prEN 206中介绍具体家庭用于混凝土生产和合格控制的概念，并提供一个调查，了解这一概念在不同的CEN成员国如何应用

The report gives guidance how to apply the concept of concrete families for the production and conformity control of concrete as it is introduced in prEN 206 and provides a survey how this concept is applied in different CEN member countries.