GB/T 32469-2016 in English
VALIDPlastics―Polyurethane raw materials―Toluene diisocyanates
- Issued on:2016-02-24
- Implemented on:2016-09-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$156.00
《GB/T 32469-2016塑料 聚氨酯原料 甲苯二异氰酸酯》由TC15(全国塑料标准化技术委员会)归口,TC15SC8(全国塑料标准化技术委员会聚氨酯塑料分会)执行,主管部门为中国石油和化学工业联合会。
Introduction
Overview of GB/T32469-2016 Standard
This standard specifies the classification, requirements, test methods, inspection rules, as well as marking, packaging, storage and transportation of toluene diisocyanate (TDI) products. It is applicable to TDI products obtained by phosgenation of toluenediamine (TDA) and its derivative specifications.
Comparison of Standard Frameworks
| Chapter | GB/T32469-2016 | Implementation Suggestions |
|---|---|---|
| Classification and Indicators | TDI is divided into three specifications: TDI-65, TDI-80 and TDI-100, which are suitable for different purposes. | Enterprises should select appropriate specifications according to application requirements and ensure that they meet the requirements of Table 1. |
| Physical and chemical properties | Including indicators such as TDI content, isomer ratio, and total chlorine content, which must meet the requirements of Table 2. | It is recommended to monitor key indicators regularly to ensure stable product quality. |
| Test methods | Gas chromatography (Appendix A) and other methods are used for testing. | The laboratory should be equipped with advanced equipment and professional personnel should be trained. |
Background of standard formulation
With the widespread application of polyurethane materials, the quality requirements for TDI are becoming increasingly stringent. This standard is formulated based on industry needs and technological progress, and aims to unify and standardize the production, testing and application of TDI products.
Technology Evolution Analysis
The preparation process of TDI has evolved from the traditional phosgenation method to the modern efficient synthesis method. The technical requirements in the standard reflect the industry's demand for green production and high quality control.
Implementation Suggestions
Key Points for Enterprise Implementation:
- Strictly classify and test products in accordance with the standards to ensure compliance with indicators such as TDI content and isomer ratio.
- Establish a complete quality management system, equip with advanced testing equipment, and calibrate regularly.
- During the production and storage process, take effective safety protection measures to avoid environmental pollution.

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