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.
It does not address evaluation of air permeability through individual components.
ISO 9972:2006 Referenced Document
ISO 13790:2004 Thermal performance of buildings - Calculation of energy use for space heating
ISO 6781 Thermal insulation; Qualitative detection of thermal irregularities in building envelopes; Infrared method
ISO 7345 Thermal performance of buildings and building components — Physical quantities and definitions*, 2018-03-08 Update
ISO 9972:2006 history
2015ISO 9972:2015 Thermal performance of buildings - Determination of air permeability of buildings - Fan pressurization method
2009ISO 9972:2006/Amd 1:2009 Thermal performance of buildings - Determination of air permeability of buildings - Fan pressurization method; Amendment 1
2006ISO 9972:2006 Thermal performance of buildings - Determination of air permeability of buildings - Fan pressurization method
1996ISO 9972:1996 Thermal insulation - Determination of building airtightness - Fan pressurization method