NF EN ISO 13967
Thermoplastics fittings - Determination of ring stiffness
ISO 13967:2009 specifies a method of determining the ring stiffness of bends and branches made from thermoplastic material and for use with plastics pipes having a circular cross-section. The method can be used to determine the stiffness of bends, equal branches and unequal branches, provided the fitting allows a diametric deflection of at least 4 %.
ISO 13967:2009 specifies a method of determining the ring stiffness of bends and branches made from thermoplastic material and for use with plastics pipes having a circular cross-section. The method can be used to determine the stiffness of bends, equal branches and unequal branches, provided the fitting allows a diametric deflection of at least 4 %.
- Avant-proposiv
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1 Domaine d'application1
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2 Termes et définitions1
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3 Symboles3
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4 Principe3
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5 Appareillage3
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6 Éprouvettes4
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6.1 Préparation4
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6.2 Nombre5
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6.3 Détermination des dimensions5
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6.4 Vieillissement7
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7 Conditionnement7
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8 Température d'essai8
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9 Mode opératoire8
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10 Calcul de la rigidité annulaire10
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11 Rapport d'essai11
- Annexe A (informative) Commentaires relatifs à l'utilisation de la présente méthode d'essai12
- Bibliographie14
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