Thermal performance of buildings and materials. Determination of specific airflow rate in buildings. Tracer gas dilution method
Thermal performance of buildings and materials. Determination of specific airflow rate in buildings. Tracer gas dilution method
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Thermal performance of buildings and materials. Determination of specific airflow rate in buildings. Tracer gas dilution method

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1   Scope

This document 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.
This document 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.