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1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN ISO 12569:2001 The
2、European Standard EN ISO 12569:2000 has the status of a British Standard ICS 91.120.10 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Thermal insulation in buildings Determination of air change in buildings Tracer gas dilution method Licensed Copy: sheffieldun sheffieldun, na
3、, Mon Nov 20 03:07:42 GMT+00:00 2006, Uncontrolled Copy, (c) BSI This British Standard, having been prepared under the direction of the Engineering Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 February 2001 BSI 02-2001 ISBN 0 580 36876 9
4、BS EN ISO 12569:2001 Amendments issued since publication Amd. No.DateComments National foreword This British Standard is the official English language version of EN ISO 12569:2000. It is identical with ISO 12569:2000. The UK participation in its preparation was entrusted by Technical Committee RHE/9
5、, Thermal insulating materials, to Subcommittee RHE/9/2, Thermal properties of insulating materials, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and ke
6、ep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references Attention is drawn to the fact that CEN and CENELEC Standards no
7、rmally include an annex which lists normative references to international publications with their corresponding European publications. The British Standards which implement these international or European publications may be found in the BSI Standards Catalogue under the section entitled Internation
8、al Standards Correspondence Index, or by using the Find facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British S
9、tandard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN ISO title page, the EN ISO foreword page, the ISO title page, pages ii to v, a blank page, pages 1 to 22, the annex ZA page and a back cover. The B
10、SI copyright notice displayed in this document indicates when the document was last issued. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 03:07:42 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 12569 November 2000 ICS 09.012.10 English ve
11、rsion Thermal insulation in buildings - Determination of air change in buildings - Tracer gas dilution method (ISO 12569:2000) Isolation thermique dans les btiments - Dtermination du renouvellement dair dans les btiments - Mthode de dilution de gaz traceurs (ISO 12569:2000) Wrmetechnisches Verhalten
12、 von Gebuden - Bestimmung des Luftwechsels in Gebuden - Indikatorgasverfahren (ISO 12569:2000) This European Standard was approved by CEN on 1 November 2000. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the
13、 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 Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German).
14、A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland,
15、France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2000
16、 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 12569:2000 E Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 03:07:42 GMT+00:00 2006, Uncontrolled Copy, (c) BSI gaPe 2 I NESO 2196502:00 Foreword The text of the Internati
17、onal Standard ISO 12569:2000 has been prepared by Technical Committee ISO/TC 163 “Thermal insulation“ in collaboration with Technical Committee CEN/TC 89 “Thermal performance of buildings and building components“, the secretariat of which is held by SIS. This European Standard shall be given the sta
18、tus of a national standard, either by publication of an identical text or by endorsement, at the latest by May 2001, and conflicting national standards shall be withdrawn at the latest by May 2001. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followi
19、ng countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of the Internati
20、onal Standard ISO 12569:2000 was approved by CEN as a European Standard without any modification. NOTE: Normative references to International Standards are listed in annex ZA (normative). EN ISO 12569:2000 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 03:07:42 GMT+00:00 2006, Uncontrolled C
21、opy, (c) BSI Reference number ISO 12569:2000(E) INTERNATIONAL STANDARD ISO 12569 First edition 2000-11-01 Thermal performance of buildings Determination of air change in buildings Tracer gas dilution method Performances thermiques des btiments Dtermination du renouvellement dair dans les btiments Mt
22、hode de dilution de gaz traceurs EN ISO 12569:2000 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 03:07:42 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii EN ISO 12569:2000 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 03:07:42 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iii Contents P
23、age Foreword.iv Introduction.v 1 Scope 1 2 Normative reference1 3 Terms and definitions .1 4 Apparatus.2 5 Procedure.4 6 Expression of results 8 7 Accuracy.10 8 Test report10 Annex A (informative) Tracer gas analyser accuracy11 Annex B (informative) Tracer gas analyser calibration.13 Annex C (inform
24、ative) Confidence intervals.14 Annex D (informative) Propagation of error analysis16 Annex E (informative) How to choose the test methods.18 Annex F (informative) Types of tracer gas .19 Annex G (informative) Details on the test report .20 Bibliography22 EN ISO 12569:2000 Licensed Copy: sheffieldun
25、sheffieldun, na, Mon Nov 20 03:07:42 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iv Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out throu
26、gh ISO technical committees. Each member body interested in a subject for which a technical committee has been 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 collabora
27、tes closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. Draft International Standards adopted by the technical committees are cir
28、culated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this International Standard may be the subject of patent rights other than thos
29、e identified above. ISO shall not be held responsible for identifying any or all such patent rights. International Standard ISO 12569 was prepared by Technical Committee ISO/TC 163, Thermal insulation, Subcommittee SC 1, Test and measurement methods. Annexes A to G of this International Standard are
30、 for information only. EN ISO 12569:2000 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 03:07:42 GMT+00:00 2006, Uncontrolled Copy, (c) BSI v Introduction Air change often accounts for a significant portion of the heating or air-conditioning load of a building. It also affects the moisture a
31、nd contaminant levels in the building. Moisture-laden air passing through cracks in the building envelope under the influence of air pressure differences and through structural elements under the influence of vapour pressure differences can condense and cause material degradation. Air flow and air c
32、hange rates depend on the size and distribution of air leakage sites, pressure differences induced by wind and temperature, mechanical system operation, and occupant behaviour. An appropriate level of ventilation is also required in all buildings for hygiene reasons. This International Standard pres
33、ents three test methods that use the measurement of tracer gas concentrations to determine air change in a building or other enclosure that can be characterized as a single zone. The measurement of tracer gas concentration, and sometimes the volume rate of flow at which the tracer gas is injected in
34、to the zone, allows calculation of the volume rate of air flow leaving the zone. The volume rate of incoming air flow can be inferred from this. The three test methods presented are: a) tracer gas decay (5.4), which tracks the decay rate of tracer gas concentration after an initial injection of trac
35、er gas, b) constant injection (5.5), which tracks the tracer gas concentration resulting from a known, constant injection rate of tracer gas, and c) constant concentration (5.6), which tracks the amount of tracer gas required to maintain it at a constant concentration at a constant level. Each test
36、method employs specific tracer gas injection and sampling strategies. Other techniques exist, but are beyond the scope of these test methods. Because air change depends on such variable conditions as building operation, wind speed, and indoor-outdoor temperatures, this International Standard does no
37、t provide information about building airtightness directly. ISO 9972 should be used to measure airtightness. EN ISO 12569:2000 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 03:07:42 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN ISO 12569:2000 Licensed Copy: sheffieldun sheffieldun, na, Mon
38、Nov 20 03:07:42 GMT+00:00 2006, Uncontrolled Copy, (c) BSI INTERNATIONAL STANDADR ISO 96521:(0002)E 1 Thermal performance of buildings Determination of air change in buildings Tracer gas dilution method 1 Scope This International Standard describes the use of tracer gas dilution for determining the
39、air change in a single zone as induced by weather conditions or mechanical ventilation. The procedures for tracer gas dilution include concentration decay, constant injection and constant concentration. Tracer gas concentration is determined by a gas analyser. Air change rate is directly calculated
40、from the rate of change of tracer gas concentration by the tracer gas decay method. Air flow rate is calculated directly from the tracer gas flow rate by the constant injection or constant concentration method. These test methods are restricted to any single tracer gas. The associated data analysis
41、assumes that the tracer gas concentration can be characterized within the zone with a single value. NOTE The constant concentration test method given in 5.6 is usually used for multiple zones and allows the measurement of the air flow rate from the outside to each zone, if the residential zones are
42、kept at the same concentration. 2 Normative reference The following normative document contains provisions which, through reference in this text, constitute provisions of this International Standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not ap
43、ply. However, parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent edition of the normative document indicated below. For undated references, the latest edition of the normative document referred to applies. Members of I
44、SO and IEC maintain registers of currently valid International Standards. ISO 7345, Thermal insulation Physical quantities and definitions. 3 Terms and definitions For the purposes of this International Standard, the terms and definitions given in ISO 7345 and the following apply. 3.1 air flow rate
45、V ? total volume of air passing through the zone to and from the outdoors per unit of time NOTE It is expressed in cubic metres per second or per hour (m3/s, m3/h). 3.2 air change rate n ratio of the total volume of air passing through the zone to and from the outdoors per unit of time to the volume
46、 of the zone NOTE It is expressed in reciprocal seconds or reciprocal hours (1/s, 1/h). EN ISO 12569:2000 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 03:07:42 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 2 3.3 building envelope boundary or barrier separating the interior volume of a buildin
47、g from the outside environment 3.4 single zone space or set of spaces wherein the concentration of a tracer gas can be maintained uniformly throughout and that only exchanges air with the outside 3.5 tracer gas gas that can be mixed with air and measured in very small concentrations in order to stud
48、y air change NOTE The tracer gas is not used to study air movement. Rather it is used to assess air transfer, exchange or infiltration. Types of tracer gas, measuring apparatus, limits of measurement, allowable concentration and specific gravity of the tracer gases are given in annex F. A gas at a t
49、emperature extremely different from that of the room should not be used for the tracer gas dilution method. 4 Apparatus The apparatus includes means for distributing the tracer gas, means for obtaining air specimens, a gas analyser to measure tracer gas concentration in the air specimens, and other measurement devices, as follows. 4.1 Tracer gas concentration standard Use a source of air with a known concentration of tracer gas. Use the tracer gas within safe limits for concentration. Avoid conditions where the amount of tracer gas that may b
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