GB/T 21990-2008 specifies the method for determining the fineness of polyvinyl chloride (PVC) paste (plastisol) using a scraper fineness gauge. Measuring the size of undispersed resin particles or impurities in the paste with a scraper fineness gauge is a key test item for controlling the uniformity and processing performance of PVC paste products.
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 | G32 | ICS | 83.080.20 |
| Release Date | 2008-06-04 00:00:00 | Implementation Date | 2008-12-01 00:00:00 |
