DIN EN 15665:2009-07

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and units
5 Needs for residential ventilation: main issues
  5.1 General
  5.2 General sources of pollutants
  5.3 Consequences of this pollution inside a dwelling
  5.4 Expectations about ventilation
6 General approach
  6.1 Questions, assumptions and way of proceeding
  6.2 Requirements for designing a ventilation system
      6.2.1 General
      6.2.2 Assumptions and criteria chosen for ventilation
            airflow rates values (level 1)
      6.2.3 Assumptions and criteria chosen for a single
            calculation representing point (level 2)
      6.2.4 Assumptions and criteria chosen for a
            yearly calculation done for design days
            (level 3)
7 Criteria
  7.1 General
  7.2 Threshold or limit of the level
  7.3 Weighted average concentration
  7.4 Average concentration above a threshold with
      limited compensation
  7.5 Average concentration above a limit
  7.6 Dose above a given value
  7.7 Decay criteria
  7.8 Use of criteria depending on pollutant
      7.8.1 General
      7.8.2 Criteria for humidity
      7.8.3 Criteria for specific activities
      7.8.4 Criteria for background pollutant
Annex A (informative) - Example of general requirements
                        (from Switzerland)
      A.1 General requirements for all ventilation
          systems
      A.2 Exhaust ventilation systems
          A.2.1 General
          A.2.2 Requirements for devices (only for
                exhaust ventilation systems)
          A.2.3 Mechanical Ventilation (with supply
                and exhaust fans)
     A.3 Assumptions and criteria chosen for
          ventilation airflow rates values (level 1)
          A.3.1 Exhaust ventilation systems
          A.3.2 Mechanical ventilation (with supply and
                exhaust fans)
Annex B (informative) - Example of occupancy scenario

Defines criteria to assess the performance of residential ventilation systems (for new, existing and refurbished buildings) which serve single family, multi family and apartment type dwellings throughout the year.