Metal composition analysis report processing procedures
Date：2025-10-11 10:12:49 Classification
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Compositional analysis uses microscopic spectroscopy and laser femtosecond laser molecular structure analysis to analyze the composition of products or samples, providing qualitative and quantitative analysis of each component. The standard process and key considerations for obtaining a metal composition analysis report are integrated from the operating procedures of professional testing institutions:
I. Process (6 Core Steps)
1. Institution Screening and Consultation
- Select a laboratory with CMA/CNAS accreditation (such as Dezewei).
- Clarify the testing purpose (export compliance, quality control, etc.) and the applicable standards (such as GB/T 223, ASTM E34).
2. Sample Preparation and Submission
- Sampling Requirements: Provide a representative sample (in block or chip form). Plastic parts must weigh at least 50g, and metal parts must weigh at least 100g.
- Pretreatment: Clean surface oil and oxide layers to avoid impurities.
3. Confirm the Testing Plan
- Basic Items: Chemical composition (major and trace elements), physical properties (hardness, density).
- Extended testing (on request): Corrosion resistance, metallographic structure, mechanical properties (tensile/impact testing).
4. Laboratory Analysis Phase
- Method Selection:
- Spectroscopic Analysis (OES/XRF) → Rapid Element Screening
- Chemical Titration/ICP-MS → High-Precision Quantification
- Turnaround Time: 3-5 working days for standard projects, 7-10 days for complex tests.
5. Report Generation and Review
- Includes sample information, test methods, result comparison, and compliance conclusion (available in both Chinese and English).
- Indicate the reference standard and detection limit (e.g., Cd ≤ 0.01%).
6. Follow-up Services
- Report Validity Period: Typically 1-2 years (re-testing required for material changes).
- Technical Support: Provides composition optimization recommendations or certification guidance (e.g., CE, RoHS).
II. Required Materials List
| Material Type | Specific Requirements
| Physical Sample | Clean and free of contamination, with batch number
| Technical Documents | Product Specifications, BOM (including component material descriptions)
| Application Form | Fill in test items, standards, and intended use
| Previous Reports | If available, provide historical test data for comparison
III. Key Considerations
1. Cost Control
- Basic component analysis costs approximately 800-2000 RMB; additional mechanical property testing will increase the cost by 30%-50%.
2. Special Requirements Statement
- Exports to the EU must comply with EN standards. Automotive/marine materials require additional fatigue testing.
3. Supply Chain Collaboration
- Request COA reports from raw material suppliers in advance to reduce duplicate testing.
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