Reasons for choosing our testing services
ZHONGXI Testing has obtained inspection qualification certifications from multiple countries and regions worldwide. We possess a senior testing team and advanced testing methods, providing independent, impartial, and professional third-party verification services for global carbon projects.
Internationally recognized authority
Certified by multiple international standards such as CNAS, VCS, and GS, with reports universally applicable worldwide.
Global service capability
Covering 140+ countries and regions, it supports on-site detection and remote verification in multiple languages.
Professional experimental methods
Adopt standard experimental methods to ensure accurate and reliable data.
A well-defined testing scope is the first sign of a competent laboratory. In the context of gasket aging testing, our services are designed to assess the long-term material performance of gaskets exposed to various environmental and operational conditions. This evaluation is critical for industries requiring high-seal integrity, such as automotive, aerospace, and industrial manufacturing. By simulating real-world aging processes, our tests provide clients with reliable data on material durability, chemical resistance, and mechanical degradation, ensuring compliance with industry standards and optimal performance in end-use applications.
Testing Scope
Our gasket aging testing services cover a wide range of materials, including but not limited to elastomers, fluoroelastomers, and thermoplastic materials. These materials are tested across various grades and formulations to meet the specific requirements of different applications. Common application scenarios include oil and gas pipelines, automotive engine seals, HVAC systems, and pharmaceutical manufacturing equipment. The testing is commonly referenced against standards such as ASTM D3951, ISO 13660, EN 12472, and GB/T 12008, ensuring alignment with international quality and safety benchmarks.
Testing Items and Parameters
The testing items and parameters for gasket aging include chemical exposure resistance, thermal degradation, mechanical stress, and compression set. Each parameter is evaluated under controlled conditions to measure the material's ability to maintain its properties over time. Below is a typical parameter list for gasket aging tests:
| Parameter | Typical Test Conditions | Graded Limit Requirement |
| Chemical Exposure Resistance | Exposure to oils, fuels, and solvents at 100°C for 168 hours | Maximum 10% volume change |
| Thermal Degradation | Heating to 200°C for 72 hours | Minimum 80% tensile strength retention |
| Mechanical Stress | Continued compression at 50% of material thickness for 96 hours | Maximum 15% hardness increase |
| compression set | 60% compression for 7 days at 150°C | Maximum 25% set deformation |
In addition to the parameters listed, customized test conditions can be developed based on client-specific requirements. The results are reported with detailed data on each parameter, enabling clients to make informed decisions about material selection and application design.
Data and Variation Analysis
Parallel-sample and batch-to-batch variation is assessed through rigorous statistical analysis to ensure consistency and reliability. For parallel-sample testing, the relative deviation between samples is calculated to determine the degree of variability. Typically, a relative deviation of less than 5% is considered acceptable for most gasket materials. Batch-to-batch variation is evaluated by comparing test results from different production runs, with acceptance windows set based on historical data and industry standards. The variation analysis is reported alongside the test results, providing clients with a clear understanding of material consistency and potential risks.
The data and variation analysis are conducted using advanced analytical tools and statistical methods, ensuring that the results are both accurate and meaningful. This approach allows clients to identify potential issues early in the development process, reducing the risk of material failure in end-use applications.
Send us your testing item list and sample details, and our engineers will confirm the applicable items and turnaround within one working day.