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BS EN 922: 1995 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

Description Printed version of this standard is available at Library. To request, please e-mail to referencepk@usm.my and include a copy of this record in your e-mail. Abstract This European Standard specifies a method for determining the viscosity number and K-value of a poly(vinyl chloride) (PVC) resin derived from a pipe, fitting or compound. In this standard, only the method for isolation of the PVC resin is detailed, while for the determination of viscosity number reference is made to ISO 174. An equation for the calculation of K-value (according to Fikentscher) from viscosity data is given (K-values corresponding to a series of viscosity numbers for PVC resin are given for information in annex A). The presence of other polymers may invalidate the method (see clause 3).

Contributor(s): MAR - Data Entry Person Primary Item Type: British Standard Identifiers: ISBN 0580242366 Language: English Subject Keywords: Plastics piping; ducting systems; Pipes and fittings; Unplasticized poly First presented to the public: 3/17/2023 Original Publication Date: 7/15/1995 Previously Published By: British Standards Institution Place Of Publication: London, United Kingdom Citation: Extents: Number of Pages - 6 License Grantor / Date Granted:   / ( View License ) Date Deposited 2023-03-17 09:32:17.169 Submitter: Muhamad Azmil Ramli

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