GB/T 21988-2008 stipulates the method of sieving in water for homopolymerization and copolymerization of plastic vinyl chloride Resin. The standard clarifies the principle of sieving through water as the medium, standardizes the operation process of instrument equipment, sample preparation and sieving, specifies the key parameters such as sieve selection, stirring speed, sieving time, and gives the result calculation and precision requirements. It provides a unified technical specification for the accurate determination of this type of Resin Particle size distribution, and helps product quality control and process optimization.
| Status | Active |
|---|---|
| CCS | G32 | ICS | 83.080.20 |
| Release Date | 2008-06-04 00:00:00 | Implementation Date | 2008-12-01 00:00:00 |