Abstract
This document specifies a method for the determination of the viscosity number of dilute solutions of polyamides in certain specified solvents.
The method is applicable to the polyamides designated PA 46, PA 6, PA 66, PA 69, PA 610, PA 612, PA 11, PA 12, PA 6T/66, PA 6I/6T, PA 6T/6I/66, PA 6T/6I, PA 6I/6T/66 and PA MXD6 as defined in Ïã¸ÛÁùºÏ²Ê¿ª½± 16396-1, as well as to copolyamides, compounds of polyamides and other polyamides that are soluble in one of the specified solvents under the specified conditions.
The method is not applicable to polyamides produced by anionic polymerization of lactams or produced with cross-linking agents; such polyamides are normally insoluble in the specified solvents.
The viscosity number is determined by the general procedure specified in Ïã¸ÛÁùºÏ²Ê¿ª½± 1628‑1, observing the particular conditions specified in this document.
General information
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Status: PublishedPublication date: 2019-04Stage: Close of review [90.60]
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Edition: 6Number of pages: 35
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Technical Committee :Ïã¸ÛÁùºÏ²Ê¿ª½±/TC 61/SC 9ICS :83.080.20
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