Thermal performance of buildings and materials - Determination of specific airflow rate in buildings - Tracer gas dilution method
ISO 12569:2017 establishes methods to obtain the ventilation rate or specific airflow rate in a building space (which is considered to be a single zone) using a tracer gas.
The measurement methods apply for spaces where the combined conditions concerning the uniformity of tracer gas concentration, measurement of the exhaust gas concentration, effective mixed zone and/or fluctuation of ventilation are satisfied.
ISO 12569:2017 provides three measurement methods using a tracer gas: concentration decay method, continuous dose method, and constant concentration method.
NOTE Specific measurement conditions are given in Table 1.
| SDO | ISO: International Organization for Standardization |
| Document Number | ISO 12569 |
| Publication Date | Aug. 1, 2017 |
| Language | en - English |
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| Committee | ISO/TC 163/SC 1 |