ISO TR 17801-2014 Plastics - Standard table for reference global solar spectral irradiance at sea level - Horizontal relative air mass 1《塑料 全球海平面太阳光谱辐照度参考标准表 水平.pdf
《ISO TR 17801-2014 Plastics - Standard table for reference global solar spectral irradiance at sea level - Horizontal relative air mass 1《塑料 全球海平面太阳光谱辐照度参考标准表 水平.pdf》由会员分享,可在线阅读,更多相关《ISO TR 17801-2014 Plastics - Standard table for reference global solar spectral irradiance at sea level - Horizontal relative air mass 1《塑料 全球海平面太阳光谱辐照度参考标准表 水平.pdf(22页珍藏版)》请在麦多课文档分享上搜索。
1、 ISO 2014 Plastics Standard table for reference global solar spectral irradiance at sea level Horizontal, relative air mass 1 Plastiques Table de rfrence pour lirradiance solaire spectrale totale au niveau de la mer Horizontale, masse dair relative 1 TECHNICAL REPORT ISO/TR 17801 First edition 2014-
2、06-15 Reference number ISO/TR 17801:2014(E) ISO/TR 17801:2014(E)ii ISO 2014 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO 2014 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechan
3、ical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01
4、11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ISO/TR 17801:2014(E) ISO 2014 All rights reserved iii Contents Page Foreword iv Introduction v 1 Scope . 1 2 References . 1 3 T erms and definitions . 1 4 Reference global solar spectral irradiance at sea level
5、 2 Annex A (informative) Input file t o gener at e the r efer enc e spectrum .14 Bibliogr aph y .15 ISO/TR 17801:2014(E) Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International S
6、tandards 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, als
7、o take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1.
8、In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance 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 eleme
9、nts 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 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
10、 (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 endorsement. For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adher
11、ence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information The committee responsible for this document is ISO/TC 61, Plastics, Subcommittee SC 6, Ageing, chemical and environmental resistance.iv ISO 2014 All rights reserved ISO/TR
12、17801:2014(E) Introduction The effect of solar radiation on surface of the earth (global radiation) is the most important primary weathering factor. The photons absorbed by the molecules during radiation exposure are often sufficient to split chemical bonds, start photochemical reactions and cause a
13、n electron transfer 1 . The spectral irradiance of the solar radiation is variable locally and in time. A reference spectrum is therefore required as a basis for the simulation of the spectral irradiance of solar radiation with artificial radiation sources/radiation systems. Data of the CIE (Commiss
14、ion Internationale de Lclairage) Publication (No. 85, 1989) have been used as a basis for years. Table 4 specifies the spectral irradiance of global radiation (direct and diffuse radiation) for a cloudless sky, zenith position of the sun by day and night comparisons at the equator at sea level. But
15、in CIE 85, the data of the global solar irradiance only begins at 305 nm, the step width is very rough and the calculation code got unexplainably lost. Therefore, there have been efforts to revise CIE No. 85 for many years. The new Table 1 gives modelled data (using the SMARTS model version 2.9.2) g
16、enerated using an air mass zero (AM0) spectrum based on extraterrestrial spectrum of Gueymard 23 . ISO 2014 All rights reserved v Plastics Standard table for reference global solar spectral irradiance at sea level Horizontal, relative air mass 1 1 Scope This Technical Report provides a reference spe
17、ctrum to the field of weathering degradation (see Table 1) in order to classify solar simulators in the UV, visible and infrared wavelength range. The photochemical ageing which occurs in practice is simulated with time compression in laboratory weathering instruments by sequencing maximum stress cl
18、imate episodes. To give a spectral irradiance target, the table specifies the spectral irradiance of global radiation (direct and diffuse radiation) with a cloudless sky, zenith position of the sun by day and night comparisons at the equator at sea level as defined in Table 4 of CIE No. 85 .This is
19、a realistic maximum exposure under representative clear sky conditions. The data contained in Table 1, Figure 2, and Figure 3 were generated using the SMARTS2 Version 2.9.2 2 3to recalculate the CIE No. 85, Table 4. Table 2 contains the original data from CIE No. 85, Table 4. The numbers are shown i
20、n Figure 2 and Figure 3 as well. 2 References The following documents, in whole or in 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 docume
21、nt (including any amendments) applies. CIE No. 85, Technical Report; Solar Spectral Irradiance; 1989 3 T erms a nd definiti ons For the purposes of this document, the following terms and definitions apply. 3.1 global solar irradiance solar radiant flux, both direct and diffuse, received on a horizon
22、tal plane unit area from a solid angle of 2 steradians Note 1 to entry: It is measured in watts per square metre (Wm 2 ). 3.2 spectral irradiance E radiant flux per unit area per wavelength interval Note 1 to entry: It is measured in watts per square metre per nanometre (Wm 2 nm 1 ). TECHNICAL REPOR
23、T ISO/TR 17801:2014(E) ISO 2014 All rights reserved 1 ISO/TR 17801:2014(E) 3.3 air mass relative optical path length of solar radiation through Earths atmosphere for the purpose of this Technical Report Note 1 to entry: As solar radiation passes through the atmosphere, it is attenuated by scattering
24、 and absorption. The more atmosphere through which it passes, the greater is the attenuation. 4 Reference global solar spectral irradiance at sea level The reference global solar spectral irradiance for air mass 1.0 (illustration see Figure 1) is given in Table 1 and Figure 2 and Figure 3. This is t
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