M00019825
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ISO DIS 12569 2016 Edition, January 28, 2016 THERMAL PERFORMANCE OF BUILDINGS AND MATERIALS - DETERMINATION OF SPECIFIC AIRFLOW RATE IN BUILDINGS - TRACER GAS DILUTION METHOD
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Availability date: 07/14/2021
Description / Abstract:
This International Standard establishes an engineering standard
by which to obtain the ventilation rate/specific airflow rate,
using a tracer gas in a building space, which is considered to be
of a single zone.
The measurement method is valid in 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 International Standard provides three measurement methods
using a tracer gas: (1) concentration decay method, (2) continuous
dose method, and (3) constant concentration method.