NF EN ISO 4892-3
Plastics - Methods of exposure to laboratory light sources - Part 3 : fluorescent UV lamps
ISO 4892-3:2006 specifies methods for exposing specimens to fluorescent UV radiation and water in apparatus to designed reproduce the weathering effects that occur when materials are exposed in actual end-use environments to daylight, or to daylight through window glass.The specimens are exposed to fluorescent UV lamps under controlled environmental conditions (temperature, humidity and/or water). Different types of fluorescent UV lamp may be used to meet all the requirements for testing different materials.
ISO 4892-3:2006 specifies methods for exposing specimens to fluorescent UV radiation and water in apparatus to designed reproduce the weathering effects that occur when materials are exposed in actual end-use environments to daylight, or to daylight through window glass.
The specimens are exposed to fluorescent UV lamps under controlled environmental conditions (temperature, humidity and/or water). Different types of fluorescent UV lamp may be used to meet all the requirements for testing different materials.
ISO 4892-3:2013 specifies methods for exposing specimens to fluorescent UV radiation, heat and water in apparatus designed to simulate the weathering effects that occur when materials are exposed in actual end-use environments to global solar radiation, or to solar radiation through window glass. The specimens are exposed to fluorescent UV lamps under controlled environmental conditions (temperature, humidity and/or water). Different types of fluorescent UV lamp can be used to meet all the requirements for testing different materials.
- Avant-proposiv
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1 Domaine d'application1
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2 Références normatives1
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3 Principe1
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4 Appareillage2
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4.1 Source lumineuse de laboratoire2
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4.2 Enceinte d'essai6
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4.3 Radiomètre6
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4.4 Thermomètre à étalon noir/à panneau noir6
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4.5 Instrument de mouillage et de réglage de l'humidité7
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4.6 Porte-éprouvettes7
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4.7 Appareillage d'évaluation des changements de propriétés7
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5 Éprouvettes d'essai7
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6 Conditions d'exposition8
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6.1 Rayonnement8
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6.2 Température8
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6.3 Humidité relative de l'air de l'enceinte8
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6.4 Cycles de condensation et de vaporisation8
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6.5 Cycles avec des périodes d'obscurité8
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6.6 Séries de conditions d'exposition9
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7 Mode opératoire10
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7.1 Généralités10
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7.2 Montage des éprouvettes d'essai10
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7.3 Exposition10
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7.4 Mesurage de l'exposition énergétique10
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7.5 Détermination des changements des propriétés après exposition10
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8 Rapport d'exposition10
- Annexe A (informative) Lampes fluorescentes UV caractéristiques - Répartition spectrale11
- Bibliographie15
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