GB/T 33047.1-2025 Active
GB/T 33047.1-2025 Plastics—Thermogravimetry(TG) of polymers—Part 1:General principles
Abstract
This document describes a general method for analyzing polymers using thermal gravimetric analysis (TGA) to measure the decomposition temperature and decomposition rate of polymers, as well as the amount of volatile substances, additives, and/or fillers contained therein. This document is suitable for analyzing liquid or solid samples, as well as products that can be processed and molded into suitable sizes. This document provides multiple methods for studying the relationship between quality changes and physical effects and chemical reactions. TGA includes dynamic mode (under programmed control conditions, mass changes with temperature or time) or isothermal mode (under constant temperature, mass changes with time). TGA can be conducted in different atmospheres, such as decomposition in an inert atmosphere, avoiding the influence of oxidative degradation reactions.
General Product Information
| Document Type | National standards |
|---|---|
| Standard Status | Active |
| Standard Code | GB/T 33047.1-2025 |
| CCS | Basic standards and general methods for synthetic resins and plastics |
| ICS | Plastic Composite |
| Implement Date | 2026-07-01 |