IEC 60068-2-5:2010

IEC 60068-2-5 ®
Edition 2.0 2010-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Environmental testing –
Part 2-5: Tests – Test Sa: Simulated solar radiation at ground level and guidance
for solar radiation testing
Essais d’environnement –
Partie 2-5: Essais – Essai Sa: Rayonnement solaire simulé au niveau du sol et
guide pour les essais de rayonnement solaire

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IEC 60068-2-5 ®
Edition 2.0 2010-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Environmental testing –
Part 2-5: Tests – Test Sa: Simulated solar radiation at ground level and guidance
for solar radiation testing
Essais d’environnement –
Partie 2-5: Essais – Essai Sa: Rayonnement solaire simulé au niveau du sol et
guide pour les essais de rayonnement solaire

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
R
CODE PRIX
ICS 19.040 ISBN 978-2-88910-035-4
– 2 – 60068-2-5 Ó IEC:2010
CONTENTS
FOREW ORD . 3

INTRODUCTION . 5

1 Scope and object . 6

2 Normative references . 6

3 Terms and definitions . 6

4 General . 7

4.1 Irradiance . 7

4.2 Spectral distribution . 7
5 C o n di t ioning . 8
5.1 Ge n eral . 8
5.2 Temperature . 8
5.3 H umidi t y . 9
5.4 Ozone and other contaminating gases . 9
5.5 Surface contamination . 9
5.6 Mounting of specimen . 9
5.7 Test facility . 9
5.8 Test apparatus . 9
6 Initial measurement . 10
7 Testing . 10
7.1 General . 10
7.2 Procedure A – 24 h cycle, 8 h irradiation and 16 h darkness, repeated as
required . 10
7.3 Procedure B – 24 h cycle, 20 h irradiation and 4 h darkness, repeated as
required . 10
7.4 Procedure C – Continuous irradiation as required . 11
8 Final measurements. 12
9 Information to be given in the relevant specification . 12
10 Information to be given in the test report . 13
Annex A (informative) Interpretation of results . 14
Annex B (informative) Radiation source . 16
Annex C (informative) Instrumentation . 17
Bibliography . 19

Figure 1 – Global solar spectral irradiance at the earth´s surface for relative air mass . 8
Figure 2 – Test procedures A, B and C . 11

Table 1 – Spectral energy distribution . 8
Table C.1 – Calculated spectral distribution values. 18

60068-2-5 Ó IEC:2010 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION

____________
ENVIRONMENTAL TESTING –
Part 2-5: Tests – Test Sa: Simulated solar radiation at

ground level and guidance for solar radiation testing

FOREWORD
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International Standard IEC 60068-2-5 has been prepared by IEC technical committee 104:
Environmental conditions, classification and methods of test.
This second edition cancels and replaces the first edition of IEC 60068-2-5, published in
1975, and IEC 60068-2-9, published in 1975, and constitutes a technical revision.
The main changes with respect to the previous edition are listed below:
This second edition of IEC 60068-2-5 will make the reading much easier, partly because it
includes guidance for solar radiation testing, previously published in a separate publication,
IEC 60068-2-9, and partly because it now allows the use of all lamps specified in CIE 85 and
published in 1985 by the International commission on Illumination.

– 4 – 60068-2-5 Ó IEC:2010
The text of this standard is based on the following documents:

FDIS Report on voting
104/500/FDIS 104/515/RVD
Full information on the voting for the approval of this standard can be found in the report on

voting indicated in the above table.

This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

A list of all the parts in the IEC 60068 series, under the general title Environmental testing,
can be found on the IEC website.
The committee has decided that the contents of this pub
...