Which standard is known for its fan pressurization method?

The standard recognized for its fan pressurization method is ISO 9972. This standard outlines techniques for measuring the airtightness of buildings and specifies the use of a fan to create a pressure difference between the inside and outside of a building. This method is critical in assessing building performance, particularly in terms of energy efficiency and indoor air quality, as it helps identify potential leakage paths where air may flow in or out of the building envelope.

Understanding the fan pressurization approach is essential for anyone involved in building testing, as it allows for consistent and repeatable results in measuring airtightness. Through proper execution of this method as described in ISO 9972, practitioners can evaluate compliance with ventilation requirements and contribute to the overall sustainability of building design.

Other options describe various methods and standards that are related to air leakage and airtightness testing but do not specifically focus on the fan pressurization technique as defined in ISO 9972. Each standard has its particular applications and methodologies, but in the context of the fan pressurization method, ISO 9972 is the definitive standard.