ISO 307:2019 PDF

Scope: 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 ISO 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 ISO 1628-1, observing the particular conditions specified in this document.

ISO 307:2019 Referenced Document

ISO 1042 Laboratory glassware - One-mark volumetric flasks
ISO 15512 Plastics — Determination of water content*， 2019-04-30 Update
ISO 1628-1 Plastics - Determination of the viscosity of polymers in dilute solution using capillary viscometers - Part 1: General principles*， 2021-01-31 Update
ISO 16396-1 Plastics — Polyamide (PA) moulding and extrusion materials — Part 1: Designation system and basis for specifications*， 2022-09-27 Update
ISO 3105 Glass capillary kinematic viscometers - Specifications and operating instructions
ISO 3451-4 Plastics — Determination of ash — Part 4: Polyamides*， 2024-01-01 Update

2019 ISO 307:2019 Plastics — Polyamides — Determination of viscosity number
2013 ISO 307:2007/Amd 1:2013 Plastics - Polyamides - Determination of viscosity number - Amendment 1: Corrections, and update to reference to JIS K 6920-2
2007 ISO 307:2007 Plastics - Polyamides - Determination of viscosity number
2003 ISO 307:2003 Plastics - Polyamides - Determination of viscosity number
1994 ISO 307:1994 Plastics - Polyamides - Determination of viscosity number
1984 ISO 307:1984 Plastics; Polyamides; Determination of viscosity number
1977 ISO 307:1977 Plastics — Determination of viscosity number of polyamides in dilute solution