Thermal performance of windows and doors - Determination of thermal transmittance by hot box method - Part 1: Complete windows and doors (ISO 12567-1:2000)

This European Standard specifies a method based on ISO 8990 to measure the overall thermal transmittance (U-value) of a window or door in a hot box. This includes all effects of frames, sashes, door leaves and fittings in a test specimen.

Wärmetechnisches Verhalten von Fenstern und Türen -Bestimmung des Wärmedurchgangskoeffizienten mittels des Heizkastenverfahrens - Teil 1: Komplette Fenster und Türen (ISO 12567-1:2000)

Diese Norm legt ein Verfahren zur Messung des Wärmedurchgangskoeffizienten einer Tür oder eines Fenstersystems fest. Sie erfaßt alle Einflüsse von Rahmen, Schiebeflügeln, Abschlüssen, Türblättern und Befestigungßubehörteilen.

Isolation thermique des fenetres et portes - Détermination de la transmission thermique par la méthode a la boîte chaude -Partie 1: Fenetres et portes completes (ISO 12567-1:2000)

La présente norme européenne décrit une méthode basée sur l'ISO 8990 pour mesurer le coefficient de transmission thermique global (coefficient U) d'une fenêtre ou d'une porte dans une boîte chaude. Ceci comprend tous les effets des menuiseries fixes et mobiles, des vantaux et des accessoires d'une éprouvette d'essai.

Toplotne lastnosti oken in vrat - Ugotavljanje toplotne prehodnosti z metodo komorne naprave - 1. del: Celotna okna in vrata (ISO 12567-1:2000)

General Information

Status
Withdrawn
Publication Date
31-Aug-2001
Withdrawal Date
03-Mar-2016
Technical Committee
Current Stage
9900 - Withdrawal (Adopted Project)
Start Date
04-Mar-2016
Due Date
27-Mar-2016
Completion Date
04-Mar-2016

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SLOVENSKI STANDARD
01-september-2001
Toplotne lastnosti oken in vrat - Ugotavljanje toplotne prehodnosti z metodo
komorne naprave - 1. del: Celotna okna in vrata (ISO 12567-1:2000)
Thermal performance of windows and doors - Determination of thermal transmittance by
hot box method - Part 1: Complete windows and doors (ISO 12567-1:2000)
Wärmetechnisches Verhalten von Fenstern und Türen -Bestimmung des
Wärmedurchgangskoeffizienten mittels des Heizkastenverfahrens - Teil 1: Komplette
Fenster und Türen (ISO 12567-1:2000)
Isolation thermique des fenetres et portes - Détermination de la transmission thermique
par la méthode a la boîte chaude -Partie 1: Fenetres et portes completes (ISO 12567-
1:2000)
Ta slovenski standard je istoveten z: EN ISO 12567-1:2000
ICS:
91.060.50 Vrata in okna Doors and windows
91.120.10 Toplotna izolacija stavb Thermal insulation
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

INTERNATIONAL ISO
STANDARD 12567-1
First edition
2000-09-01
Thermal performance of windows and
doors — Determination of thermal
transmittance by hot box method —
Part 1:
Complete windows and doors
Isolation thermique des fenêtres et portes — Détermination de la
transmission thermique par la méthode à la boîte chaude —
Partie 1 : Fenêtres et portes complètes
Reference number
ISO 12567-1:2000(E)
©
ISO 2000
ISO 12567-1:2000(E)
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ii © ISO 2000 – All rights reserved

ISO 12567-1:2000(E)
Contents Page
Foreword.iv
Introduction.v
1 Scope .1
2 Normative references .1
3 Terms, definitions and symbols.2
4 Principle.3
5 Requirements for test specimens and apparatus .7
6 Test procedure.11
7 Test report .15
Annex A (normative) Environmental temperatures.17
Annex B (normative) Linear thermal transmittance of the edge zone.21
Annex C (informative) Design of calibration transfer standard (CTS).24
Annex D (informative) Example of calibration test and measurement of window specimen.28
Annex E (informative) Analytical calibration procedure using heat balance equations.39
Bibliography.41
ISO 12567-1:2000(E)
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 through 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 collaborates 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 circulated 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. ISO shall not be held responsible for identifying any or all such patent rights.
International Standard ISO 12567-1 was prepared by Technical Committee ISO/TC 163, Thermal insulation,
Subcommittee SC 1, Test and measurement methods.
ISO 12567 consists of the following parts, under the general title Thermal performance of windows and doors —
Determination of thermal transmittance by hot box method:
� Part 1: Complete windows and doors
� Part 2: Roof windows and other projecting windows
Annexes A and B are a normative part of this International Standard. Annexes C, D and E are for information only.
iv © ISO 2000 – All rights reserved

ISO 12567-1:2000(E)
Introduction
The method specified in this part of ISO 12567 is based on ISO 8990. It is designed to provide both standardized
tests, which enable a fair comparison of different products to be made, and specific tests on products for practical
application purposes. The former specifies standardized specimen sizes and applied test criteria.
The determination of the aggregate thermal transmittance is performed for conditions which are similar to the actual
situation of the window and door in practice.
INTERNATIONAL STANDARD ISO 12567-1:2000(E)
Thermal performance of windows and doors — Determination of
thermal transmittance by hot box method —
Part 1:
Complete windows and doors
1 Scope
This part of ISO 12567 specifies a method to measure the thermal transmittance of a door or window system. This
includes all effects of frames, sashes, shutters, door leaves and fittings.
It does not include:
� edge effects occurring outside the perimeter of the specimen;
� energy transfer due to solar radiation on the specimen;
� effects of air leakage through the specimen;
� roof windows and projecting products, where the glass layer projects beyond the cold side roof surface.
NOTE For roof windows and projecting units, the procedure given in ISO 12567-2 (under preparation, see Bibliography [4])
should be used.
Annex A gives methods for the calculation of environmental temperatures.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of
this part of ISO 12567. For dated references, subsequent amendments to, or revisions of, any of these publications
do not apply. However, parties to agreements based on this part of ISO 12567 are encouraged to investigate the
possibility of applying the most recent editions of the normative documents indicated below. For undated
references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain
registers of currently valid International Standards.
ISO 7345, Thermal insulation — Physical quantities and definitions.
ISO 8301, Thermal insulation — Determination of steady-state thermal resistance and related properties — Heat
flow meter apparatus.
ISO 8302, Thermal insulation — Determination of steady-state thermal resistance and related properties —
Guarded hot plate apparatus.
ISO 8990:1994, Thermal insulation — Determination of steady-state thermal transmission properties — Calibrated
and guarded hot box.
ISO 9288, Thermal insulation — Heat transfer by radiation — Physical quantities and definitions.
ISO 12567-1:2000(E)
IEC 60584-1, Thermocouples — Part 1: Reference tables.
EN 12898, Glass in building — Determination of the emissivity.
3 Terms, definitions and symbols
3.1 Terms and definitions
For the purposes of this part of ISO 12567 the terms and definitions given in ISO 7345, ISO 8990 and ISO 9288
apply.
3.2 Symbols
For the purposes of this part of ISO 12567 the quantities given in ISO 7345 and ISO 9288 apply, together with
those given in Tables 1 and 2.
Table 1 — Symbols and units
Symbol Physical quantity Unit
A area
m
d thickness (depth) m
F fraction —
f view factor —
h surface coefficient of heat transfer
W/(m �K)
H
height m
L perimeter length m
q density of heat flow rate
W/m
R thermal resistance
m �K/W
T thermodynamic temperature K
U thermal transmittance
W/(m �K)
w width m
� radiant factor —
�T, �� temperature difference K
total hemispherical emissivity —

Celsius temperature
� �C
� thermal conductivity W/(m�K)
2 4
Stefan-Boltzmann constant
� W/(m �K )
heat flow rate W

� linear thermal transmittance
W/(m�K)
2 © ISO 2000 – All rights reserved

ISO 12567-1:2000(E)
Table 2 — Subscripts
Subscript Significance
b baffle
c convection (air)
cal calibration
e external, usually cold side
i internal, usually warm side
in input
m measured
me mean
n environmental (ambient)
ne environmental (ambient) external
ni environmental (ambient) internal
p reveal of surround panel
r radiation (mean)
ssurface
sp specimen
st standardized
sur surround panel
ttotal
4Principle
The thermal transmittance, U, of the specimen is measured by means of the calibrated or guarded hot box method
in accordance with ISO 8990.
The determination of the thermal transmittance involves two stages. First, measurements are made on two or more
calibration panels with accurately known thermal properties, from which the surface coefficient of the heat transfer
(radiative and convective components) on both sides of the calibration panel and the thermal resistance of the
surround panel are determined. Secondly, measurements are made with the window or door specimens in the
aperture and the hot box apparatus is used with the same fan settings on the cold side as during the calibration
procedure.
The surround panel is used to keep the specimen in a given position. It is constructed with outer dimensions of
appropriate size for the apparatus, having an aperture to accommodate the specimen (see Figures 1 and 2).
The principal heat flows through the surround panel and the calibration panel (or test specimen) are shown in
Figure 3. The boundary edge heat flow due to the location of the calibration panel in the surround panel is
determined separately by a linear thermal transmittance,� .
The procedure in this part of ISO 12567 includes a correction for the boundary edge heat flow, so that standardized
and reproducible thermal transmittance properties are obtained.
The magnitude of the boundary edge heat flow as a function of geometry, calibration panel thickness and thermal
conductivity is determined by tabulated values given in annex B.
Measurement results are corrected to standardized surface heat transfer coefficients by an interpolation or
analytical iteration procedure, derived from the calibration measurements.
Measures are taken (e.g. pressure equalization between the warm and cold side or sealing of the joints on the
inside) to ensure that the air permeability of the test specimen does not influence the measurements.
ISO 12567-1:2000(E)
Dimensions in millimetres
The total gap width between the top and bottom of the specimen and the surround panel aperture shall not exceed
5 mm. It shall be sealed with non-metallic tape or mastic material. The total gap width on both sides between the
specimen and the surround panel aperture shall not exceed 5 mm.
Key
a
1 Border of metering area
Recommended to be centrally located.
2 Surround panel, �u 0,04 W/(m�K)
b
Use fill material with same thermal properties as surround
panel core.
3Glazing
4Coldside
5Warmside
6 Flush sill
Figure 1 — Window system in surround panel
4 © ISO 2000 – All rights reserved

ISO 12567-1:2000
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