**Mobile Phone Reliability Experiment Catalog**
1. **Purpose**
As part of the product quality assurance system, the reliability testing program aims to achieve the following objectives:
- Continuously evaluate the life and fatigue of the product under specific acceptable environmental conditions to assess its quality and reliability.
- Define the procedures for performing the Product Reliability Test (PRT) to ensure consistent and accurate evaluation.
2. **Basis for Preparation**
The test procedures are based on various national and industry standards, including:
- GB/T 2421-1999: General environmental testing for electrical and electronic products
- GB/T 15844.2-1995: Environmental requirements for mobile communication FM radios
- GB/T 15844.3-1995: Reliability requirements for mobile communication FM radios
- GB/T 2423.1-2001: Environmental testing for electric and electronic products
- GB/T 2423.10-1995: Vibration testing
- GB/T 2423.3-93: Constant damp heat test
- GB4943-2001: Safety of information technology equipment
- GB/T 17626.2-1998: Electrostatic discharge immunity test
- YD/T 1215-2002: GPRS equipment test methods
- YD 1032-2000: Electromagnetic compatibility limits for mobile stations
- Department of Information Technology, Ministry of Information Industry: Machine Access Inspection Rules
3. **Execution Principles**
The reliability test procedure and judgment criteria must be strictly followed to ensure consistency and accuracy in testing outcomes.
4. **Scope of Application**
This catalog applies to all R&D mobile phone products developed by the XXXXX wireless communication company.
5. **Terms and Definitions**
- PRT: Product Reliability Test
6. **Main Duties**
- **Reliability Test Technician**: Execution and tracking of specific test tasks, recording results, maintaining equipment, and managing the lab database.
- **Reliability Test Engineer**: Planning and executing test plans, analyzing results, developing procedures, and managing test equipment.
- **Reliability Test Manager**: Overseeing the implementation of test procedures, reviewing project plans, and coordinating with the quality department.
- **Reliability Test Specialist**: Handling test requests, tracking progress, and ensuring clear communication between teams.
7. **Reliability Test Procedure**
7.1 **Accelerated Life Test (ALT)**
- **Prototype Quantity**: PR1: 8, PR2: 10, PR3: 10, PIR: 10
- **Test Cycles**: 10–12 days
- **Purpose**: Accelerate product failure to identify potential issues early.
- **Test Steps**: Thermal shock, drop tests, and humidity tests are performed with strict time intervals. After each test, the appearance, structure, and function are checked.
- **Standard**: No surface damage, normal function, and no structural abnormalities.
7.2 **Climate Adaptability Test (Climatic Stress Test)**
- **Sample Size**: 4 for general weather, 2 for severe weather
- **Test Duration**: 7 days
- **Purpose**: Simulate real-world environmental conditions to evaluate product performance.
- **Tests Include**: High/low temperature parameter tests, high humidity tests, and functional tests under extreme conditions.
- **Standard**: All functions work normally, and there is no deformation or malfunction.
7.3 **Mechanical Endurance Test**
- **Sample Size**: 11 units
- **Test Duration**: 7 days
- **Tests Include**: Keypad, side key, flip, slide, charger, stylus, and other mechanical component endurance tests.
- **Standard**: Components remain functional, flexible, and free from damage after repeated use.
7.4 **Decorative Surface Test**
- **Sample Size**: 6 sets per color
- **Test Duration**: 4 days
- **Tests Include**: Abrasion resistance, coating adhesion, perspiration resistance, hardness, lens scratch resistance, and UV exposure.
- **Standard**: No peeling, fading, or damage to the surface finish.
7.5 **Special Stress Test**
- **Tests Include**: Low-temperature drop, twist, squeeze, and ball drop tests.
- **Standard**: No structural damage, function remains normal, and components are secure.
7.6 **Other Conditions Test**
- **Sample Size**: 5 units
- **Test Duration**: 1 day
- **Tests Include**: Screw disassembly, lanyard hole strength, and other special condition evaluations.
- **Standard**: Screws, holes, and connectors remain intact and functional.
8. **Final Inspection**
The final inspection includes checking for internal cracks, loose parts, contaminants, and assembly issues. All prototypes must be disassembled for a thorough examination. Any serious defects found during this process should be documented and treated as faulty units. Minor issues must be recorded in the product documentation.
9. **Appendix**
Additional details, test procedures, and reference materials are included in the appendix for comprehensive understanding and implementation.
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