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Futai Test is your global partner for independent component and product testing. We offer a broad portfolio of regulated radio test products and are globally certified to test virtually any telecommunications product.
Our testing services cover many common radio technologies widely used in a variety of products, and we perform relevant tests according to currently applicable specifications and standards. Our test reports are recognized worldwide, providing a basis for market acceptance.
1. Overview of Reliability Testing
Reliability testing is an independent and systematic testing process, which is used to evaluate the ability of products, components, materials or systems to maintain their specified performance under given environmental conditions and time constraints. The core purpose is to verify stability, repeatability, durability and credibility, provide data support for product quality evaluation, risk control and performance improvement, and ensure that the tested objects can meet the expected use requirements.
Testing Scope:Applicable to reliability evaluation of electronic products, mechanical components, materials, industrial equipment, consumer goods and other objects (excluding chemical environmental testing-related links).
2. Core Testing Items & Methods
2.1 Environmental Reliability Testing
|
Testing Item |
Testing Method |
Core Purpose |
|
High Temperature Test |
Place the sample in a high-temperature test chamber at a specified temperature (e.g., 40℃, 60℃, 85℃) for a certain period (e.g., 24h, 48h), and detect performance changes before and after. |
Verify the adaptability of the sample under high-temperature environment. |
|
Low Temperature Test |
Place the sample in a low-temperature test chamber at a specified temperature (e.g., -10℃, -20℃, -40℃) for a certain period, and detect performance changes. |
Verify the adaptability of the sample under low-temperature environment. |
|
Temperature Cycle Test |
Alternate high and low temperature environments (e.g., -20℃~60℃), set cycle times (e.g., 10 cycles, 20 cycles), and evaluate performance stability. |
Simulate the influence of temperature changes on the sample during actual use. |
|
Humidity Test (High Humidity/Damp Heat) |
Control the humidity of the test chamber (e.g., 85% RH, 95% RH) and temperature, place the sample for a specified time, and detect performance. |
Evaluate the resistance of the sample to damp and humid environments. |
|
Vibration Test |
Fix the sample on the vibration test bench, set vibration frequency (e.g., 10-500Hz) and amplitude, and test for a specified time. |
Verify the structural stability and performance reliability of the sample under vibration conditions. |
|
Shock Test |
Apply instantaneous impact force to the sample (e.g., 100G, 200G) according to the standard, and check for structural damage and performance degradation. |
Simulate the impact of accidental collision during transportation and use. |
2.2 Life Reliability Testing
Accelerated Life Test: Improve environmental stress (temperature, humidity, load) to shorten the test time, predict the service life of the sample under normal use conditions through data fitting.
Continuous Operation Life Test: Operate the sample continuously under normal working conditions for a specified period (e.g., 1000h, 5000h), record performance parameters and failure conditions.
Fatigue Test: Apply cyclic load to the sample (mechanical components) or cyclic working conditions (electronic products) until failure, evaluate fatigue life and structural strength.
2.3 Performance Reliability Testing
Repeatability Test: Test the same sample with the same method, same instrument and same operator for multiple times (e.g., 3-5 times), evaluate the consistency of test results.
Stability Test: Detect the performance of the sample at different time points (e.g., 0h, 24h, 72h) under specified conditions, verify the long-term performance stability.
Load Capacity Test: Apply rated load, overload (e.g., 120% rated load) to the sample, test its bearing capacity and performance stability under load.
3. Core Evaluation Indicators
The reliability evaluation is based on the following indicators, and the specific limits shall comply with relevant national/international standards and product technical requirements:
Failure Rate (λ): The number of failures per unit time of the sample under specified conditions, which is used to evaluate the failure probability during use.
Mean Time Between Failures (MTBF): The average time between two consecutive failures of the sample, which is an important indicator of the reliability of repairable products.
Mean Time To Failure (MTTF): The average time from the start of operation to the first failure of the sample, which is used for non-repairable products.
Repeatability Precision: Expressed by relative standard deviation (RSD), generally requiring RSD ≤ 5%-10% (adjusted according to product type).
Stability Error: The deviation of product performance parameters at different time points shall not exceed the specified limit of the product.
Survival Rate: The percentage of samples that do not fail after the specified test time, reflecting the overall reliability level.
4. Standard Testing Workflow
Test Preparation: Confirm the test object, clarify the test requirements and standards, select appropriate test instruments and equipment, and calibrate the instruments to ensure their normal operation.
Sample Preparation: Select representative samples (meet the quantity and specification requirements of the standard), check the initial state of the samples, and record relevant parameters (appearance, performance, etc.).
Test Execution: Carry out the test in accordance with the predetermined test plan and method, strictly control the test conditions (temperature, humidity, load, time, etc.), and record the test data and phenomena in real time.
Data Processing: Sort out and analyze the test data, calculate the reliability evaluation indicators (failure rate, MTBF, RSD, etc.), conduct error analysis, and process abnormal data in accordance with the standard.
Result Evaluation: Compare the test results with the specified standards and technical requirements, judge whether the reliability of the sample meets the requirements, and put forward evaluation opinions.
Report Issuance: Compile the test report, attach the test records and data, issue the CMA/CNAS certified report (if applicable), and ensure the authenticity and completeness of the report.
5. Core Standards & Compliance Basis
5.1 International Standards
- ISO 9001: Quality Management System Requirements (for reliability test process control)
- ISO 16750: Environmental conditions and testing for electrical and electronic equipment for road vehicles
- IEC 60068: Environmental testing - Part 2: Test methods (core standard for environmental reliability testing)
- ASTM D4329: Standard Test Method for Accelerated Aging of Pressure-Sensitive Adhesives
- MIL-STD-810: Environmental Engineering Considerations and Laboratory Tests (military-grade reliability standard)
5.2 Domestic Standards (China)
- GB/T 2423: Environmental testing for electrical and electronic products (equivalent to IEC 60068)
- GB/T 10586: Humidity test methods for electrical and electronic products
- GB/T 10589: Low temperature test methods for electrical and electronic products
- GB/T 10592: High temperature test methods for electrical and electronic products
- GB/T 31484: Reliability test method for lithium-ion batteries for electric vehicles
6. Testing Notes
All test instruments shall be calibrated regularly in accordance with the standard to ensure the accuracy of test data.
The test conditions shall be strictly controlled during the test, and any deviation from the preset conditions shall be recorded in detail.
The sample shall be protected from damage, pollution and interference during sample preparation and test execution.
Test records shall be kept intact, including test conditions, data, phenomena and operator information, which shall be traceable.
If the sample fails during the test, the failure time, failure phenomenon and possible causes shall be recorded in detail, and the failure analysis shall be carried out if necessary.
