GB/T 21993-2008 specifies the determination method of methanol or ethanol extract in polyvinyl chloride (PVC) Resin. The standard clarifies the test principle, standardizes the requirements of equipment, reagent materials and sample preparation, elaborates the operation steps of extraction, evaporation, weighing, etc., and gives the result calculation method and precision regulations. It provides a unified technical specification for the accurate determination of methanol or ethanol extract content in polyvinyl chloride (PVC) Resin, which is helpful for evaluating product purity and mass.
| Status | Active |
|---|---|
| CCS | G32 | ICS | 83.080.20 |
| Release Date | 2008-06-04 00:00:00 | Implementation Date | 2008-12-01 00:00:00 |