NF EN ISO 877
Plastics. Methods of exposure to direct weathering, to weathering using glass-filtered daylight, and to intensified weathering by daylight using Fresnel mirrors.
ISO 877-1:2009 provides information and general guidance on the selection and use of the methods of exposure to solar radiation described in detail in subsequent parts of ISO 877. These methods of exposure to solar radiation are applicable to plastics materials of all kinds as well as to products and portions of products. It also specifies methods for determining radiant exposure. It does not include direct weathering using black-box test fixtures, which simulate higher end-use temperatures in some applications.
ISO 877-2:2009 specifies a method for the direct exposure of plastics to solar radiation and a method for the exposure of plastics to glass-filtered solar radiation (exposure behind window glass). The purpose is to assess property changes produced after specified stages of such exposures.
ISO 877-3:2009 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.
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1 Domaine d'application1
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2 Références normatives1
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3 Définitions2
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4 Principe2
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5 Appareillage3
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6 Éprouvette9
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7 Conditions d'essai10
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8 Niveaux d'exposition11
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9 Mode opératoire13
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10 Expression des résultats15
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11 Rapport d'essai16
- Annexe A Emploi des tissus références de laine teints en bleu pour mesurer la quantité d'énergie lumineuse18
- Annexe B Classification des climats20
- Annexe C Bibliographie se rapportant à la méthode C (vieillissement accéléré avec concentrateur à miroirs de Fresnel)21
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