ISO 19467:2017

INTERNATIONAL ISO
STANDARD 19467
First edition
2017-04
Thermal performance of windows and
doors — Determination of solar heat
gain coefficient using solar simulator
Performance thermique des fenêtres et portes — Détermination du
coefficient de gain thermique solaire au moyen d’un simulateur solaire
Reference number
©
ISO 2017
© ISO 2017, Published in Switzerland
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ii © ISO 2017 – All rights reserved

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Symbols and subscripts . 2
5 Principle . 3
5.1 General . 3
5.2 Measurement of heat flow rates with irradiance . 3
5.3 Determination of the net density of heat flow rate due to thermal transmission . 5
5.4 Measurement of heat flow rates without irradiance . 6
6 Test apparatus and specimens . 8
6.1 Construction and summary of the test apparatus . 8
6.1.1 Construction of the test apparatus . 8
6.1.2 Summary of the test apparatus . 9
6.2 Solar simulator . 9
6.3 Climatic chamber .10
6.4 Metering box .10
6.5 Surround panels .11
6.6 Calibration panels.11
6.7 Metering location of temperatures and irradiance.11
6.8 Test specimens .12
7 Measurement procedure .12
7.1 Measurement .12
7.2 Expression of results for reference conditions .13
8 Test report .13
8.1 Report contents .13
8.2 Estimation of uncertainty .14
Annex A (normative) Determination of surface coefficient of heat transfer .15
Annex B (normative) Determination of night time U-value in case of small
temperature difference .17
Annex C (normative) Correction of measured solar heat gain coefficient to reference conditions 18
Annex D (informative) Examples of design of measuring apparatus .30
Annex E (informative) Example of temperature measurement .39
Annex F (informative) Measuring method and example of measurement of active solar
fenestration systems .42
Annex G (informative) Example of measurement and uncertainty analysis.44
Annex H (informative) Spectral weighting procedures based on ISO 9050 and with
analogous solar simulator spectra .47
Bibliography .52
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
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electrotechnical standardization.
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described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
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This document was prepared by Technical Committee ISO/TC 163, Thermal performance and energy use
in the built environment, Subcommittee SC 1, Test and measurement methods.
iv © ISO 2017 – All rights reserved

Introduction
The terms solar heat gain coefficient (SHGC), total solar energy transmittance (TSET), solar factor
and g-value are all used to describe the same quantity. Small differences might be caused by different
reference conditions (e.g. differences in the reference solar spectrum). In this document, solar heat gain
coefficient is used.
This document is designed to provide solar heat gain coefficient values by standardized measurement
method and to enable a fair comparison of different products. It specifies standardized apparatus and
criteria. The solar heat gain coefficient measuring apparatus applied in this document includes solar
simulator, climatic chamber, and metering box. Solar heat gain coefficient values of windows and doors
with or without shading devices shall be determined more precisely by means of combination between
calculation and measurement.
This document does not deal with the centre of glazing solar heat gain coefficient measurement.
However, the centre of glazing solar heat gain coefficient can be measured by either this method or
cooled plate method (see Reference [12]).
INTERNATIONAL STANDARD ISO 19467:2017(E)
Thermal performance of windows and doors —
Determination of solar heat gain coefficient using solar
simulator
1 Scope
This document specifies a method to measure the solar heat gain coefficient of complete windows
and doors.
This document applies to windows and doors
a) with various types of glazing (glass or plastic; single or multiple glazing; with or without low
emissivity coatings, and with spaces filled with air or other gases),
b) with opaque panels,
c) with various types of frames (wood, plastic, metallic with and without thermal barrier or any
combination of materials),
d) with various types of shading devices (blind, screen, film or any attachment with shading effects),
e) with various types of active solar fenestration systems [building-integrated PV systems (BIPV) or
building-integrated solar thermal collectors (BIST)].
This document does not include the following:
a) shading effects of building elements (e.g. eaves, sleeve wall, etc.);
b) heat transfer caused by air leakage between indoors and outdoors;
c) ventilation of air spaces in double and coupled windows;
d) thermal bridge effects at the rebate or joint between the window or door frame and the rest of the
building envelope.
This document does not apply to the following:
a) non-vertical windows;
b) curtain walls;
c) industrial, commercial and garage doors.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 9050, Glass in building — Determination of light transmittance, solar direct transmittance, total solar
energy transmittance, ultraviolet transmittance and related glazing factors
ISO 9845-1, Solar energy — Reference solar spectral irradiance at the ground at different receiving
conditions — Part 1: Direct normal and hemispherical solar irradiance for air mass 1,5
ISO 12567-1, Thermal performance of windows and doors — Determination of thermal transmittance by
the hot-box method — Part 1: Complete windows and doors
ISO 15099:2003, Thermal performance of windows, doors and shading devices — Detailed calculations
1)
ISO 52022-3 , Energy performance of buildings — Thermal, solar and daylight properties of building
components and elements — Part 3: Detailed calculation method of the solar and daylight characteristics
for solar protection devices combined with glazing
IEC 60904-9, Photovoltaic devices — Part 9: Solar simulator performance requirements
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 7345, ISO 8990, ISO 9288,
ISO 9845-1, ISO 12567-1, ISO 15099 and IEC 60904-9 apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http:// www .electropedia .org/
— I
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