GB/T 27810-2011 "Binder for paints and varnishes – Gel permeation chromatography (GPC) using tetrahydrofuran as eluent" is applicable to the determination of the molecular weight distribution, number-average molecular weight, and weight-average molecular weight of polymers soluble in tetrahydrofuran. The test requires the use of a gel permeation chromatograph, equipped with specialized chromatographic columns, an eluent supply system, an injection system, and a detector, calibrated with unbranched polystyrene reference materials. The results of this method are suitable for comparative analysis among similar sample groups, providing a standardized testing basis for quality control of binder polymers.
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 | G51 | ICS | 87.040 |
| Release Date | 2011-12-30 00:00:00 | Implementation Date | 2012-06-01 00:00:00 |