Measurement techniques for air change and air penetration of residential buildings Messmethoden zur Erfassung des Luftwechsels und der Luftdurchlassigkeit von Wohnbauten.

Defines air change and air penetration. Describes the differential pressure method, the infrasound method, qualitative judgement methods, and acoustic measurement devices for determining air penetration. Explains procedures todetermine air change - the rate of decay method, the constant concentration method, and the constant emission method.

In situ measurement of air and water tightness. Mesures in situ de l'etancheite a l'air et a l'eau.

Describes three research programmes measuring tightness of components, of specific areas of a building and of complete buildings. Defines the Belgian standards currently applicable. For air tightness, the area or building is depressurized by 5 to 100 Pa and the flow of air that enters is measured. Thenthe components are made air tight one by one, and each time the new flow rate is measured to give values for the different components. The specific area alone can be depressurized, the specific area plus the whole building or just the whole building.

Pressurization testing, infiltration reduction and energy savings.

Pressurisation measurements were taken on 55 single family houses immediately before and after house tightening carried out as part of the Modular Retrofit Experiment (MRE) in New Jersey and New York. The data was reduced according totwo pres

The effect of tracer gas on the accuracy of air change measurements in buildings

Compares the air change rates measured using the decay method with several different tracer gases. The tracer gas measurements were conducted in atightly sealed room where constant air leakage rates, ranging from 0.05 to 1 air change per hour could be maintained using an exhaust fan. The tracer gases investigated were CH4, CO, CO2, N2O and SF6. The agreement between tracer gas measurements and measured flow rates of the exhaust fan was very good for CH4, CO and N2O.

Plan and preliminary results of the U.S. Environmental Agency's Indoor Air Monitoring Program - 1982

The U.S. EPA initiated an indoor air monitoring program in 1982, concentrating on commercial or public-access buildings (homes for the elderly, schools, and office buildings). Several buildings from each category are sampled over 2-3 day peri

Natural infiltration - tracer gas test Infiltration naturelle - test au gaz traceur

Provides the results of tests into tracer gas concentration decay carried out in 15 Belgian apartments (Concours CHT) in 1982 to determine the rates of air infiltration. The tests formed part of a research programme which included pressurisation

Ventilation in industrial buildings. Final report

The problems associated with the measurement of ventilation rates and air movement patterns in large single cell buildings which were unoccupied and unheated were investigated using the tracer gases nitrous oxide and sulphur hexafluoride. 

Methods for measurement of air flow rates in ventilation systems

Presents methods for the measurement of air flow rates, including methods for measuring flow in ducts, at exhaust and supply air devices and for air change rates for using tracer gas.

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