This International Standard is intended for the measurement of the air permeability of buildings or parts of buildings in the field. It specifies the use of mechanical pressurization or depressurization of a building or part of a building. It describes the measurement of the resulting air flow rates over a range of indoor-outdoor static pressure differences. This International Standard is intended for the measurement of the air leakage of building envelopes of single-zone buildings. For the purpose of this International Standard, many multi-zone buildings can be treated as single-zone buildings by opening interior doors or by inducing equal pressures in adjacent zones. International Standard does not address evaluation of air permeability of individual components.
Sisällysluettelo
Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions, and symbols
3.1 Terms and definitions
3.2 Symbols
4 Apparatus
4.1 General
4.2 Equipment
5 Measurement procedure
5.1 Measurement conditions
5.2 Preparation
5.3 Steps of the procedure
6 Expression of results
6.1 Reference values
6.2 Calculation of the air leakage rate
6.3 Derived quantities
7 Test report
8 Uncertainty
8.1 General
8.2 Reference value
8.3 Overall uncertainty
Annex A Description of equipment used to pressurize buildings (informative)
Annex B Dependence of air density on temperature, dew point,and barometric pressure (informative)
Annex C Recommended procedure for estimating uncertaintyin derived quantities (informative)
Annex D Beaufort scale of wind (extract) (informative)
Annex E Detection of the leakage location (informative)