GB/T 35858-2018 in English
VALIDRubber,vulcanized—Test method of salt mist aging
- Issued on:2018-02-06
- Implemented on:2018-09-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$78.00
《GB/T 35858-2018硫化橡胶 盐雾老化试验方法》由TC35（全国橡胶与橡胶制品标准化技术委员会）归口，TC35SC2（全国橡胶与橡胶制品标准化技术委员会通用试验方法分会）执行，主管部门为中国石油和化学工业联合会。
Introduction
1. Background and significance of standard formulation
GB/T 35858—2018 "Vulcanized Rubber Salt Spray Aging Test Method" is my country's first standard for testing the aging performance of vulcanized rubber in a salt spray environment. The formulation of this standard is based on the salt spray corrosion problems faced by rubber products in practical applications, especially in the fields of marine engineering and transportation facilities.
With the rapid development of my country's rubber industry, the requirements for material aging resistance are constantly increasing. This standard fills the gap in domestic vulcanized rubber salt spray aging test methods and provides a scientific basis for the quality assessment of rubber products.
2. Comparative analysis of standard frameworks
| Standard dimensions | GB/T 35858—2018 | ISO reference standards | Difference analysis |
|---|---|---|---|
| Scope of application | Vulcanized rubber materials and products | General plastics and composite materials | More targeted |
| Test indicators | Mechanical properties, appearance changes, etc. | Mechanical properties, surface corrosion | Focus on rubber characteristics |
| Environmental conditions | Salt spray concentration 5±1% (mass fraction), pH value 6.5~7.2 | NaCl concentration 5%, pH value 6.0~7.0 | Wider range |
3. Recommendations for standard implementation
Actual application case:
- A tire company used this standard to test its rubber products used in marine environments. The results showed that the salt spray aging performance change rate was less than 5%.
- By adjusting the pH value of the salt spray solution to 6.8, the surface corrosion rate of the sample was significantly reduced.
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