GB/T 21843-2008 stipulates the method for determining the particle size of plastic vinyl chloride homopolymer and copolymer Resin with mechanical sieve. The standard clarifies the test principle, standardizes the preparation of instruments and equipment, samples and the sieving operation process, specifies the key parameters such as sieve specification and vibration 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, and helps product quality control and process optimization.
| Status | Active |
|---|---|
| CCS | G32 | ICS | 83.080.20 |
| Release Date | 2008-05-15 00:00:00 | Implementation Date | 2008-11-01 00:00:00 |