NF EN 922

Plastics piping and ducting systems. Pipes and fittings of unplasticized poly(vinyl chloride) (PVC-U). Specimen preparation for determination of the viscosity number and calculation of the K-value.

Le présent document décrit une méthode d'essai de détermination de l'indice de viscosité et de la valeur-K d'une résine PVC prélevée dans un tube ou dans un raccord.

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