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BS EN ISO 877-3:2018

BS EN ISO 877-3:2018

$102.76

Plastics. Methods of exposure to solar radiation – Intensified weathering using concentrated solar radiation

Published By Publication Date Number of Pages
BSI 2018 20
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This document specifies a method for exposing plastics to concentrated solar radiation using reflecting concentrators to accelerate the weathering processes. The purpose is to assess property changes produced after specified stages of such exposures. The reflecting concentrators used in these exposures are sometimes referred to as “Fresnel reflectors” because in cross-section the array of mirrors used to concentrate the solar radiation resembles the cross-section of a Fresnel lens.

General guidance concerning the scope of the ISO 877 series is given in ISO 877‑1.

NOTE Additional information about solar concentrating exposures, including a partial list of standards in which they are specified, is given in the Bibliography.

PDF Catalog

PDF Pages PDF Title
2 National foreword
4 European foreword
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
3 Terms and definitions
4 Principle
10 5 Apparatus
5.1 General requirements
11 5.2 Apparatus for measurement of climatic factors
6 Test specimens
7 Exposure conditions
7.1 Orientation of mirrors
12 7.2 Exposure site
7.3 Temperature control
13 7.4 Irradiance level
14 8 Exposure stages
8.1 General
8.2 Solar radiant exposure
8.2.1 Guidance for selection of the exposure stage
8.2.2 Instrumental measurement of solar radiant exposure
15 9 Procedure
9.1 Mounting of test specimens
9.2 Mounting of reference materials (if used)
9.3 Climatic observations
9.4 Exposure of test specimens
9.4.1 General
9.4.2 Exposure cycles
9.4.3 Testing under glass
16 10 Expression of results
10.1 Determination of changes in properties
10.2 Climatic conditions and observations
10.2.1 General
10.2.2 Temperature
10.2.3 Relative humidity
10.2.4 Levels (values) of exposure stages
17 10.2.5 Precipitation
10.2.6 Time of wetness
10.2.7 Other observations
11 Test report
18 Bibliography

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BS EN ISO 877-3:2018
$102.76