GB/T 3401-2007 specifies the method for determining the viscosity of dilute solutions of polyvinyl chloride (PVC) resins using a capillary viscometer (typically an Ubbelohde viscometer). By measuring the intrinsic viscosity, this method can be used to characterize the average molecular weight of the resin, which is an important parameter for evaluating resin grades and processing performance.
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 | G30 | ICS | 83.080.20 |
| Release Date | 2007-08-13 00:00:00 | Implementation Date | 2008-02-01 00:00:00 |
