The numbering and headings of the clauses and subclauses of DIN EN 13670 to which these application rules apply have been adopted in this standard. Amendments to the text of DIN EN 13670 are indicated in the standard. In addition to the application rules relating to the passages indicated in DIN EN 13670 this standard includes the following annexes: Annex NA.A, Annex NA.B, Annex NA.C, Annex NA.D and Annex NA.E. These annexes are referred to in the application rules and include national specifications for certain tests and the monitoring of certain construction activities.