GB/T 24282-2021 Active
GB/T 24282-2021 Plastics—Determination of xylene-soluble matter fraction in polypropylene
Abstract
This document specifies three methods for determining the content of soluble substances in polypropylene homopolymers or copolymers in toluene at 25°C: -- Method A: Chemical method; -- Method B: Infrared spectroscopy method; -- Method C: Low-resolution pulsed nuclear magnetic resonance method. Method A is the reference method and is used for calibration of Method B and Method C. This document is applicable to the determination of the content of soluble substances in polypropylene homopolymers or copolymers in toluene at 25°C. Additives and other materials that can dissolve in toluene may affect the determination of the content of soluble substances in toluene.
General Product Information
| Document Type | National standards |
|---|---|
| Standard Status | Active |
| Standard Code | GB/T 24282-2021 |
| CCS | Basic standards and general methods for synthetic resins and plastics |
| ICS | Plastic Composite |
| Implement Date | 2022-07-01 |