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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Main informations

Collections

National standards and national normative documents

Publication date

January 1995

Number of pages

8 p.

Reference

NF EN 922

ICS Codes

23.040.20 Plastics pipes

23.040.45 Plastics fittings

Classification index

T54-019

Print number

1 - 01/01/1995

European kinship

EN 922:1994

Sumary

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.

Standard replaced by (1)

NF EN ISO 13229

November 2011

Standard Current

Thermoplastics piping systems for non-pressure applications - Unplasticized poly(vinyl chloride) (PVC-U) pipes and fittings - Determination of the viscosity number and K-value

ISO 13229:2010 specifies a method for the determination of the viscosity number (also known as reduced viscosity) and K-value of an unplasticized poly(vinyl chloride) (PVC) resin derived from a pipe, fitting or compound. In ISO 13229:2010, only the method for isolation (or separation) of the PVC resin is detailed.

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