1、BSI Standards PublicationBS EN ISO 9972:2015Thermal performance ofbuildings Determination ofair permeability of buildings Fan pressurization methodBS EN ISO 9972:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO 9972:2015. It supersedes BS EN 13829:2001 w
2、hich is withdrawn.The UK participation in its preparation was entrusted to Technical Committee B/540, Energy performance of materials components and buildings.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to includ
3、e all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2015.Published by BSI Standards Limited 2015ISBN 978 0 580 74685 7 ICS 91.120.10 Compliance with a British Standard cannot confer immunity from legal obligations.This Br
4、itish Standard was published under the authority of the Standards Policy and Strategy Committee on 30 September 2015.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 9972 September 2015 ICS 91.120.10 Supersedes EN 1382
5、9:2000English Version Thermal performance of buildings - Determination of air permeability of buildings - Fan pressurization method (ISO 9972:2015) Performance thermique des btiments - Dtermination de la permabilit lair des btiments - Mthode de pressurisation par ventilateur (ISO 9972:2015) Wrmetech
6、nisches Verhalten von Gebuden - Bestimmung der Luftdurchlssigkeit von Gebuden - Differenzdruckverfahren (ISO 9972:2015) This European Standard was approved by CEN on 20 June 2015. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
7、 European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official ve
8、rsions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austri
9、a, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden,
10、 Switzerland, Turkey andUnited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN na
11、tional Members. Ref. No. EN ISO 9972:2015 EBS EN ISO 9972:2015EN ISO 9972:2015 (E) 3 European foreword This document (EN ISO 9972:2015) has been prepared by Technical Committee ISO/TC 163 “Thermalperformance and energy use in the built environment“ in collaboration with Technical CommitteeCEN/TC 89
12、“Thermal performance of buildings and building components” the secretariat of which isheld by SIS. This European Standard shall be given the status of a national standard, either by publication of anidentical text or by endorsement, at the latest by March 2016, and conflicting national standards sha
13、llbe withdrawn at the latest by March 2016. Attention is drawn to the possibility that some of the elements of this document may be the subject ofpatent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patentrights. This document supersedes EN 13829:2000. Acco
14、rding to the CEN-CENELEC Internal Regulations, the national standards organizations of thefollowing countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,France, Germany, G
15、reece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,Turkey and the United Kingdom.Endorsement notice The text of ISO 9972:2015 has been approved by CEN as EN ISO 9972:2015 without
16、 any modification. BS EN ISO 9972:2015ISO 9972:2015(E)Foreword vIntroduction vi1 Scope . 12 Normative references 13 Terms, definitions, and symbols 13.1 Terms and definitions . 13.2 Symbols . 34 Apparatus . 44.1 General . 44.2 Equipment . 44.2.1 Air-moving equipment . 44.2.2 Pressure-measuring devic
17、e 44.2.3 Air flow rate measuring system 44.2.4 Temperature-measuring device 45 Measurement procedure 45.1 Measurement conditions 45.1.1 General 45.1.2 Measured extent . 55.1.3 Time of measurement . 55.2 Preparation 55.2.1 Building preparation methods . 55.2.2 Heating, ventilation and air conditionin
18、g systems and other building equipment 55.2.3 Intentional openings in the envelope 65.2.4 Openings inside the measured extent . 75.2.5 Air-moving equipment . 75.2.6 Pressure measuring devices 75.3 Steps of the procedure 85.3.1 Preliminary check . 85.3.2 Temperature and wind conditions . 85.3.3 Zero-
19、flow pressure difference 85.3.4 Pressure difference sequence . 86 Expression of results 96.1 Reference values 96.1.1 Internal volume . 96.1.2 Envelope area . 96.1.3 Net floor area .106.2 Calculation of the air leakage rate . 106.3 Derived quantities . 136.3.1 General. 136.3.2 Air change rate at refe
20、rence pressure difference .136.3.3 Specific leakage rate (envelope) 136.3.4 Specific leakage rate (floor). 146.3.5 Effective leakage area .146.3.6 Specific effective leakage area (envelope) 146.3.7 Specific effective leakage area (floor) .147 Test report 158 Uncertainty 158.1 General 158.2 Reference
21、 value . 168.3 Overall uncertainty . 16Annex A (informative) Description of equipment used to pressurize buildings 17 ISO 2015 All rights reserved iiiContents PageBS EN ISO 9972:2015ISO 9972:2015(E)Annex B (informative) Dependence of air density on temperature, dew point,and barometric pressure 19An
22、nex C (informative) Recommended procedure for estimating uncertaintyin derived quantities 20Annex D (informative) Beaufort scale of wind (extract) .23Annex E (informative) Detection of the leakage location 26iv ISO 2015 All rights reservedBS EN ISO 9972:2015ISO 9972:2015(E)ForewordISO (the Internati
23、onal Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been
24、 established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standa
25、rdization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordanc
26、e with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
27、any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorseme
28、nt.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible
29、 for this document is ISO/TC 163, Thermal performance and energy use in the built environment, Subcommittee SC 1, Test and measurement methods.This third edition cancels and replaces the second edition (ISO 9972:2006), which has been technically revised. ISO 2015 All rights reserved vBS EN ISO 9972:
30、2015ISO 9972:2015(E)IntroductionThe fan-pressurization method is intended to characterize the air permeability of the building envelope or parts thereof. It can be used, for example,a) to measure the air permeability of a building or part thereof for compliance with a design air-tightness specificat
31、ion,b) to compare the relative air permeability of several similar buildings or parts of buildings, andc) to determine the air-leakage reduction resulting from individual retrofit measures applied incrementally to an existing building or part of building.The fan pressurization method does not measur
32、e the air infiltration rate of a building. The results of this method can be used to estimate the air infiltration rate and resulted heat load by means of calculation.Other methods, like tracer gas, are applicable when it is desired to obtain a direct measurement of the air infiltration rate. A sing
33、le tracer gas measurement, however, gives limited information on the performance of ventilation and infiltration of buildings.The fan-pressurization method applies to measurements of air flow through the construction from outside to inside or vice versa. It does not apply to air flow measurements fr
34、om outside through the construction and back to outside.The proper use of this International Standard requires knowledge of the principles of air flow and pressure measurements. Ideal conditions for the test described in this International Standard are small temperature differences and low wind spee
35、ds. For tests conducted in the field, it needs to be recognized that field conditions can be less than ideal. Nevertheless, strong winds and large indoor-outdoor temperature differences are to be avoided.vi ISO 2015 All rights reservedBS EN ISO 9972:2015Thermal performance of buildings Determination
36、 of air permeability of buildings Fan pressurization method1 ScopeThis International Standard is intended for the measurement of the air permeability of buildings or parts of buildings in the field. It specifies the use of mechanical pressurization or depressurization of a building or part of a buil
37、ding. It describes the measurement of the resulting air flow rates over a range of indoor-outdoor static pressure differences.This International Standard is intended for the measurement of the air leakage of building envelopes of single-zone buildings. For the purpose of this International Standard,
38、 many multi-zone buildings can be treated as single-zone buildings by opening interior doors or by inducing equal pressures in adjacent zones.International Standard does not address evaluation of air permeability of individual components.2 Normative referencesThe following documents, in whole or in
39、part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 7345, Thermal insulation Physical quantities
40、 and definitions3 Terms, definitions, and symbols3.1 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 7345 and the following apply.3.1.1air leakage rateair flow rate across the building envelopeNote 1 to entry: This movement includes flow through joints,
41、 cracks, and porous surfaces, or a combination thereof, induced by the air-moving equipment used in this International Standard (see Clause 4).3.1.2building envelopeboundary or barrier separating the inside of the building or part of the building subject to the test from the outside environment or a
42、nother building or another part of the building3.1.3air change rateair leakage rate per internal volume across the building envelope3.1.4air permeabilityair leakage rate per the envelope area across the building envelopeINTERNATIONAL STANDARD ISO 9972:2015(E) ISO 2015 All rights reserved 1BS EN ISO
43、9972:2015ISO 9972:2015(E)3.1.5specific leakage rateair leakage rate per the envelope area across the building envelope at the reference pressure difference3.1.6specific leakage rateair leakage rate per net floor area across the building envelope at the reference pressure difference3.1.7effective lea
44、kage arealeakage area calculated at the test reference pressure differences across the building envelope3.1.8specific effective leakage area leakage area per the envelope area across the building envelope at the reference pressure difference3.1.9specific effective leakage area leakage area per net f
45、loor area across the building envelope at the reference pressure difference3.1.10to close an openingto set an opening in close position using the closing device present on the opening without additionally increasing the airtightness of the openingNote 1 to entry: If there is no way to close the open
46、ing (i.e. without closing device), it remains open.3.1.11to seal an openingto make an opening hermetic by any appropriate means (adhesive, inflatable balloon, stopper, etc.)2 ISO 2015 All rights reservedBS EN ISO 9972:2015ISO 9972:2015(E)3.2 SymbolsSymbol Quantity UnitAEenvelope area m2AFfloor area
47、m2ELApreffective leakage area at the reference pressure difference m2ELAEprspecific effective leakage area per the building envelope area at the reference pressure differencem2/ m2ELAFprspecific effective leakage area per the floor area at the reference pressure differencem2/ m2Cenvair flow coeffici
48、ent m3/(hPan)CLair leakage coefficient m3/(hPan)nprair change rate at the reference pressure difference h1p pressure Papbaruncorrected barometric pressure Papvpartial water vapour pressure of water Papvssaturation vapour pressure of water Paq50air leakage rate at 50 Pa m3/hqEprspecific leakage rate
49、per the building envelope area at the reference pressure difference across the envelopem3/(hm2)qFprspecific leakage rate per the floor area at the reference pressure dif-ference across the envelopem3/(hm2)qmmeasured air flow rate m3/hqprair leakage rate at the reference pressure difference m3/hqrreadings of air flow rate m3/hV internal volume m3p induced pressure difference Pap0zero-flow pressure difference (average) Pap0,1; p0,2zero-flow pressure difference before and after the test (air moving equipment closed)Pap0+; p0-averag
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