GB/T 9350-2003 stipulates the determination method of the pH value of the plastic vinyl chloride homopolymer and copolymer Resin water extract. The standard clarifies the determination principle, required instruments and reagents, and the preparation process of the sample, standardizes the preparation and pH value determination steps of the water extract, the calculation method and precision requirements of the results, and provides a unified technical specification for accurately obtaining the pH value of this kind of Resin water extract, which helps to control the Resin mass and meet the testing requirements of Resin chemical performance in related application scenarios.
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 | 2003-08-25 00:00:00 | Implementation Date | 2004-02-01 00:00:00 |
