NF EN ISO 20795-1
Dentistry - Base polymers - Part 1 : denture base polymers
ISO 20795-1:2008 classifies denture base polymers and copolymers and specifies their requirements. It also specifies the test methods to be used in determining compliance with these requirements. It further specifies requirements with respect to packaging and marking the products and to the instructions to be supplied for use of these materials. Furthermore it applies to denture base polymers for which the manufacturer claims that the material has improved impact resistance. It also specifies the respective requirement and the test method to be used.ISO 20795-1:2008 applies to denture base polymers such as those listed below:poly(acrylic acid esters);poly(substituted acrylic acid esters);poly(vinyl esters);polystyrene;rubber modified poly(methacrylic acid esters);polycarbonates;polysulfones;poly(dimethacrylic acid esters);polyacetals (polyoxymethylene);copolymers or mixtures of the polymers listed above.
ISO 20795-1:2008 classifies denture base polymers and copolymers and specifies their requirements. It also specifies the test methods to be used in determining compliance with these requirements. It further specifies requirements with respect to packaging and marking the products and to the instructions to be supplied for use of these materials. Furthermore it applies to denture base polymers for which the manufacturer claims that the material has improved impact resistance. It also specifies the respective requirement and the test method to be used.
ISO 20795-1:2008 applies to denture base polymers such as those listed below:
- poly(acrylic acid esters);
- poly(substituted acrylic acid esters);
- poly(vinyl esters);
- polystyrene;
- rubber modified poly(methacrylic acid esters);
- polycarbonates;
- polysulfones;
- poly(dimethacrylic acid esters);
- polyacetals (polyoxymethylene);
- copolymers or mixtures of the polymers listed above.
Bien que la présente Norme internationale n'exige pas, de la part des fabricants, une déclaration des détails de la composition, l'attention est attirée sur le fait que certaines autorités nationales ou internationales demandent que de tels détails leur soient fournis.La présente Norme internationale s'applique aux polymères pour base de prothèses dentaires tels que ceux qui sont énumérés ci-après.a) Poly(esters d'acide acrylique);b) poly(esters d'acide acrylique substitués);c) poly(esters de vinyle);d) polystyrène;e) élastomère modifié de poly(esters d'acide méthacrylique);f) polycarbonates;g) polysulfures;h) poly(esters d'acide diméthacrylique);i) polyacétals (polyoxyméthylène);j) copolymères ou mélanges des polymères énumérés de a) à i).
ISO 20795-1:2013 classifies denture base polymers and copolymers and specifies their requirements. It also specifies the test methods to be used in determining compliance with these requirements. It further specifies requirements with respect to packaging and marking the products and to the instructions to be supplied for use of these materials. Furthermore, it applies to denture base polymers for which the manufacturer claims that the material has improved impact resistance. It also specifies the respective requirement and the test method to be used. ISO 20795-1:2013 applies to denture base polymers such as those listed below: poly(acrylic acid esters); poly(substituted acrylic acid esters); poly(vinyl esters); polystyrene; rubber modified poly(methacrylic acid esters); polycarbonates; polysulfones; poly(dimethacrylic acid esters); polyacetals (polyoxymethylene); copolymers or mixtures of the polymers listed in 1 to 9.
- Avant-proposiv
- Introductionv
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1 Domaine d'application1
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2 Références normatives1
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3 Termes et définitions2
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4 Classification3
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5 Exigences4
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5.1 Produits non polymérisés4
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5.2 Produits polymérisés4
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6 Échantillonnage7
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7 Préparation des éprouvettes7
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7.1 Environnement du laboratoire7
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7.2 Modes opératoires7
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7.3 Matériel spécial7
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8 Méthodes d'essai7
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8.1 Contrôle de détermination de la conformité7
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8.2 Plasticité lors du garnissage8
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8.3 Couleur10
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8.4 Stabilité des teintes11
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8.5 Aptitude au polissage, translucidité, absence de porosités, résistance à la flexion et module d'élasticité13
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8.6 Ténacité avec essai de cintrage modifié18
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8.7 Liaison avec des dents à base de polymères synthétiques22
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8.8 Teneur résiduelle en monomères à base de méthacrylate de méthyle23
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8.9 Absorption et solubilité dans l'eau29
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9 Exigences relatives à l'étiquetage, au marquage, à l'emballage et instructions fournies par le fabricant31
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9.1 Emballage31
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9.2 Marquage des emballages et conteneurs externes31
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9.3 Instructions fournies par le fabricant32
- Annexe A (normative) Méthode de CLHP pour la détermination de la teneur en MMA34
- Bibliographie37
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