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.
At our CNAS/CMA-accredited laboratory, we specialize in cellular mechanics testing to assess the mechanical behavior of biological and biomimetic materials. A well-defined testing scope is the first sign of a competent laboratory, ensuring accurate and relevant results for clients across medical devices, tissue engineering, and biopharmaceutical industries. Our capabilities are demonstrated through standardized methodologies aligned with international standards.
Testing Scope
Our cellular mechanics testing services are applicable to a wide range of products, including but not limited to: biodegradable polymers, hydrogels, scaffolds for tissue engineering, cell culture substrates, and biomedical composites. We test materials in various grades and formulations, tailored for specific applications such as wound healing devices, drug delivery systems, and artificial joints. Commonly referenced standards include ASTM F451 for cell adhesion mechanics, ISO 10993 for biological evaluation, and EN 10993 for biomedical materials testing. Our testing scope covers static and dynamic mechanical properties, with emphasis on quantifying cellular interaction forces and material viscoelasticity.
Testing Items and Parameters
Testing items encompass a comprehensive suite of mechanical performance metrics, including elastic modulus, yield strength, hysteresis loss, and energy dissipation. Typical parameters are outlined below in a parameter list table:
| Test Item | Typical Parameters | Graded Limit Requirements |
|---|---|---|
| elastic modulus | 0.1 kPa to 1 MPa | ±5% relative deviation |
| yield strength | 0.01 kPa to 500 MPa | ±3% absolute value |
| Viscoelastic Ratio (tanδ) | 0.01 to 1.0 | ±10% relative deviation |
| Force-Displacement Curvature | 0.01 to 10 N/mm² | ±2% absolute value |
Graded limit requirements are defined based on industry specifications and client-specified acceptance criteria. All test parameters are measured using calibrated instruments with sub-micron resolution, ensuring reproducibility across parallel and batch samples.
Data and Variation Analysis
Parallel-sample and batch-to-batch variation is rigorously assessed through statistical analysis of repeated measurements. Relative deviation between parallel samples is calculated using the coefficient of variation (CV), typically maintained below 5% for mechanical properties. Typical acceptance windows for batch-to-batch consistency are established at ±8% for viscoelastic properties and ±6% for stiffness measurements. Data is presented with 95% confidence intervals, and variation trends are analyzed using ANOVA to detect significant deviations. Acceptance criteria are derived from ISO 2859-1 sampling plans, ensuring statistically sound conclusions about material uniformity. Our reporting includes detailed variation analysis, enabling clients to correlate mechanical performance with material processing conditions.
Please contact us to confirm your testing item list and sample information. We will revert with a formal quotation and expected schedule based on your requirements.