GB/T 1632.3-2010 specifies a method for determining the viscosity of dilute solutions of polyethylene (PE) and polypropylene (PP) using a capillary viscometer (typically an Ubbelohde viscometer). By measuring the intrinsic viscosity, the average molecular weight or degree of polymerization can be characterized, which is a common method for resin grade identification and performance evaluation.
This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
| Status | Active | ||
|---|---|---|---|
| CCS | G31 | ICS | 83.080.01 |
| Release Date | 2010-09-26 00:00:00 | Implementation Date | 2011-08-01 00:00:00 |
