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BS EN ISO 12569:2017 Thermal performance of buildings and materials. Determination of specific airflow rate in buildings. Tracer gas dilution method >
BS EN ISO 12569:2017 Thermal performance of buildings and materials. Determination of specific airflow rate in buildings. Tracer gas dilution method, 2017
- National foreword
- Foreword
- Introduction
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Measurement method and its selection
- 4.1 General
- 4.2 Concentration decay method
- 4.2.1 Principle
- 4.2.2 Two-point decay method
- 4.2.3 Multipoint decay method
- 4.2.4 Step-down exhaust concentration method
- 4.2.5 Pulse method
- 4.3 Continuous dose method
- 4.3.1 Principle
- 4.3.2 Average inverse concentration method
- 4.3.3 Average concentration method
- 4.3.4 Stationary concentration method
- 4.4 Constant concentration method
- 4.5 Type of tracer gas
- 4.6 Measurement apparatus
- 4.6.1 General
- 4.6.2 Tracer gas dosing device
- 4.6.3 Tracer gas sampling apparatus
- 4.6.4 Gas analyser
- 5 Procedure
- 5.1 Building preparations
- 5.2 Ancillary measurements
- 5.3 Concentration decay method
- 5.3.1 Calculation of two-point and multi-point methods
- 5.3.2 Procedure of two-point and multi-point methods
- 5.3.3 Calculation of step-down exhaust concentration method and pulse method
- 5.3.4 Procedure of the step-down exhaust concentration method and pulse method
- 5.4 Continuous dose methods
- 5.4.1 Calculation of average of inverse concentration method
- 5.4.2 Procedure of average of inverse concentration method
- 5.4.3 Calculation of average concentration method
- 5.4.4 Procedure of average concentration method
- 5.4.5 Calculation of stationary concentration method
- 5.4.6 Procedure of stationary concentration method
- 5.5 Constant concentration method
- 5.5.1 Calculation of constant concentration method
- 5.5.2 Procedure of constant concentration method
- 6 Accuracy
- 6.1 General
- 6.2 Tracer gas dose procedure and room concentration distribution
- 6.3 Tracer gas sampling and storage method
- 6.4 Tracer gas concentration measuring instruments
- 6.4.1 General
- 6.4.2 Resolution
- 6.4.3 Tracer gas analyser drift
- 6.4.4 Accuracy of tracer gas analyser
- 6.4.5 Calibration of tracer gas analyser
- 6.4.6 Standard gas concentration
- 6.5 Changes in outside wind and outdoor air temperature and schedule of air conditioning system
- 7 Test report
- 7.1 General
- 7.2 Details necessary to identify the simulation tested
- 7.3 Details of heating and ventilation systems
- 7.4 Test conditions and apparatus
- 7.5 Collected data and results
- 7.6 Date of the test
- Annex A (normative) Confidence intervals
- Annex B (normative) Method to estimate ventilation rate Qv and effective mixed zone volume Vemz simultaneously[3][4]
- Annex C (informative) Considerations when measuring the ventilation rate of large spaces
- Annex D (informative) Effects of internal and external temperature difference, temperature change, and outdoor air concentration change during the measurement period
- Annex E (informative) Estimation error minimizing method in two-point and multi-point decay methods
- Annex F (informative) Propagation of error analysis
- Bibliography [Go to Page]