GB/T 30918-2022 in English
VALIDNon-oil-extended solution polymerized isoprene rubber (IR)—Evaluation procedures
- Issued on:2022-12-30
- Implemented on:2023-07-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
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《GB/T 30918-2022非充油溶液聚合型异戊二烯橡胶（IR） 评价方法》由TC35（全国橡胶与橡胶制品标准化技术委员会）归口，TC35SC6（全国橡胶与橡胶制品标准化技术委员会合成橡胶分会）执行，主管部门为中国石油和化学工业联合会。
Introduction
Non-oil-extended solution polymerized isoprene rubber (IR) evaluation method standard interpretation
GB/T30918-2022 is about the evaluation method of non-oil-extended solution polymerized isoprene rubber (IR), which replaces the previous GB/T30918-2014 standard. This revision adds terms and definitions, determination methods of volatile matter and ash, and updates the evaluation of vulcanization characteristics.
Comparative Analysis of Standard Frameworks
| Chapter Contents | GB/T30918-2014 | GB/T30918-2022 | Modification Notes |
|---|---|---|---|
| Terms and Definitions | None | Added Chapter 3 | New content, clarified industry terms |
| Determination of Volatile Matter | Not clearly specified | Added Section 5.2 | Supplemented determination methods and referenced standards |
| Determination of Ash Content | Not clearly specified | Added Section 5.3 | Supplemented the determination methods and referenced standards |
| Vulcanization Characteristics Evaluation | Chapter 6 | Adjusted to Chapter 7 | Updated the parameter representation method of rotorless vulcanizer |
Standard Development Background and Technology Evolution Analysis
The revision of GB/T30918-2022 is based on the following reasons:
- Technological Progress:The improvement of the vulcanization characteristics evaluation method reflects the industry's higher requirements for rubber performance testing.
- International Integration:The modification adopts ISO2303:2019 to ensure that domestic standards are synchronized with international standards.
- Application Requirements:Added volatile matter and ash determination methods to meet new demands in the field of rubber products.
Implementation suggestions
How can enterprises effectively implement GB/T30918-2022:
- Update testing equipment: Ensure that they are equipped with vulcanizers and volatile content measuring instruments that meet the requirements of the new standard.
- Train technical personnel: Focus on mastering term definitions, mixing procedures and vulcanization characteristics evaluation methods.
- Optimize laboratory management: Establish a complete sample sampling and sample preparation process to ensure data accuracy.
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