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BS EN ISO 4892-2:2013+A1:2021

BS EN ISO 4892-2:2013+A1:2021

$142.49

Plastics. Methods of exposure to laboratory light sources – Xenon-arc lamps

Published By Publication Date Number of Pages
BSI 2021 24
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This part of ISO 4892 specifies methods for exposing specimens to xenon-arc light in the presence of moisture to reproduce the weathering effects (temperature, humidity and/or wetting) that occur when materials are exposed in actual end-use environments to daylight or to daylight filtered through window glass.

Specimen preparation and evaluation of the results are covered in other International Standards for specific materials.

General guidance is given in ISO 4892‑1.

NOTE Xenon-arc exposures of paints and varnishes are described in ISO 11341.

PDF Catalog

PDF Pages PDF Title
2 National foreword
4 European foreword
Anchor 2
Foreword to amendment A1
6 Foreword
7 1 Scope
2 Normative references
3 Principle
8 4 Apparatus
4.1 Laboratory light source
4.1.1 General
4.1.2 Spectral irradiance of xenon-arc lamps with daylight filters
9 4.1.3 Spectral irradiance of xenon-arc lamps with window glass filters
10 4.1.4 Irradiance uniformity
4.2 Test chamber
11 4.3 Radiometer
4.4 Black-standard/black-panel thermometer
4.5 Wetting and humidity-control equipment
4.5.1 General
4.5.2 Relative-humidity control equipment
4.5.3 Spray system
4.6 Specimen holders
12 4.7 Apparatus to assess changes in properties
5 Test specimens
6 Exposure conditions
6.1 Radiation
6.2 Temperature
6.2.1 Black-standard and black-panel temperature
13 6.2.2 Chamber air temperature
6.3 Relative humidity of chamber air
6.4 Spray cycle
6.5 Cycles with dark periods
14 6.6 Sets of exposure conditions
15 7 Procedure
7.1 General
7.2 Mounting the test specimens
7.3 Exposure
7.4 Measurement of radiant exposure
7.5 Determination of changes in properties after exposure
8 Exposure report
16 Annex A (informative) Filtered xenon-arc radiation — Relative spectral irradiance
17 Annex B (normative) Additional exposure cycles
19 Annex C (informative) Classification of daylight filters
22 Bibliography

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BS EN ISO 4892-2:2013+A1:2021
$142.49