BS EN 16472:2014
$102.76
Plastics. Method for artificial accelerated photoageing using medium pressure mercury vapour lamps
| Published By | Publication Date | Number of Pages |
| BSI | 2014 | 20 |
This European Standard specifies a method for carrying out artificial accelerated photoageing of test specimens by exposing them to medium pressure filtered mercury vapour lamp as light source, under controlled temperature conditions.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 4 | Contents Page |
| 5 | Foreword |
| 6 | Introduction |
| 7 | 1 Scope 2 Normative references 3 Terms and definitions 4 General |
| 8 | 5 Apparatus 5.1 Laboratory light source 5.1.1 General |
| 9 | Figure 1 — Typical spectrum of a filtered medium pressure mercury vapour lamp 5.1.2 Spectral irradiance of medium pressure mercury vapour lamps |
| 10 | Table 1 — Relative spectral irradiance of medium pressure mercury vapour lamps 5.1.3 Irradiance uniformity 5.2 Test chamber |
| 11 | 5.3 Specimen holders 5.4 Radiometer 5.5 Temperature sensor 5.6 Temperature controller |
| 12 | 5.7 Optional facilities 6 Test specimens 7 Exposure conditions 7.1 Radiation 7.2 Temperature 7.3 Optional facilities 8 Procedure 8.1 Verification of the apparatus |
| 13 | 8.2 Mounting the test specimens 8.3 Exposure 8.4 Measurement of radiant exposure 8.5 Determination of changes in properties after exposure 9 Test report |
| 15 | Annex A (informative) Additional filtering of lamp UV radiations A.1 Additional filtering of UVB radiations for chromophoric polymers exposed to outdoor conditions Figure A.1 — Example of transmittance versus wavelength of an optical filter |
| 16 | A.2 Additional filtering of UV radiations for polymers exposed to indoor conditions Figure A.2 — Example of transmittance versus wavelength of a glass window filter |
| 17 | Annex B (informative) Temperature control during photoageing |
| 18 | Bibliography |
