RoHS compliance is crucial for manufacturers, ensuring products meet safety and environmental standards. However, the method used for RoHS testing can impact accuracy and efficiency. In India, many domestic manufacturers still use the Influence Coefficients Method, while leading global brands like SHIMADZU and HITACHI use the FP (Fundamental Parameters) Method.
Both methods meet general testing needs, but FP Method is superior in speed and handling complex samples. Let’s compare our T6 (Influence Coefficients Method) and T7 (FP Method) to understand why FP-based RoHS testing machines are the better choice.
1. Comparison of Test Efficiency & Reproducibility
| Feature | T6 (Influence Coefficients Method) | T7 (FP Method) |
|---|---|---|
| Test Time | 60s or 200s (longer for accuracy) | 60s/sample (fast & precise) |
| Data Reproducibility (Deviation) | High deviation at 60s, accurate only at 200s | High accuracy even at 60s |
| Spectrum Quality | Significant difference at 60s and 200s | Consistent & precise |
Conclusion: The FP Method delivers faster, more reliable results, while the Influence Coefficients Method requires extended testing time to match FP’s accuracy.
Comparing test efficiency and stability of various RoHS Testing machine:
Sample used for testing: PE specimen LDPE-05
Test items / Content in the sample: ROHS six types: Pb, Cd, Hs, (total chromium Cr)Cr + (total bromine
Br) PBB, PBDE
Test results in T6 RoHS Testing machine using Coefficients method:
Below is Test results using T7 RoHS Testing Machine
Comparison of deviations between the three groups of data: (the smaller the better)
2. Testing Complex Samples
2.1 Non-Metallic Sample (Example: Color Powder)
| Test Aspect | T6 (Influence Coefficients) | T7 (FP Method) |
| Elements Detected | High interference, inaccurate results | Clearly identifies S, Ti, V, Bi |
| Overlapping Issue | Incorrect values due to element interference | Accurate element separation |
Conclusion: T7’s FP Method overcomes element interference, delivering precise results for non-metallic RoHS testing.
2.2 Metal Sample (Example: Copper Alloy)
| Test Aspect | T6 (Influence Coefficients) | T7 (FP Method) |
| Pb & Bi Element Accuracy | Misjudgment due to similar energy values | Correctly differentiates Pb & Bi |
| Analytical Process | Needs additional correction & calibration | Direct, accurate measurement |
Conclusion: The FP Method provides reliable readings for metal samples, while the Influence Coefficients Method often misinterprets overlapping elements.
3. Why FP-Based RoHS Testing Machines Are Better
| Factor | Influence Coefficients Method | FP Method (Fundamental Parameters) |
| Testing Speed | Slow (200s for accurate results) | Fast (60s with precision) |
| Accuracy for Complex Samples | Struggles with overlapping elements | Precisely separates elements |
| Standard Sample Required? | Yes, for proper calibration | No, works even without standard samples |
| Element Interference Issues | High, needs correction | Minimal, built-in compensation |
4. Industries That Benefit from RoHS Testing Machines
| Industry | Application |
| Electronics & Semiconductors | Ensures compliance in PCBs, connectors, and electronic components |
| Automotive | Tests automotive parts for hazardous substances |
| Electrical Appliances | Ensures household appliances meet RoHS safety standards |
| Medical Devices | Verifies RoHS compliance in medical instruments and implants |
| Aerospace & Defense | Tests materials for restricted substances in aviation and military applications |
| Consumer Goods | Ensures toys, packaging, and household items are free from hazardous elements |
| Manufacturing & Metal Processing | Tests raw materials and components for RoHS compliance |
Final Verdict
For businesses in India looking for the best RoHS testing machine, the FP Method (T7) is the superior choice. It offers faster testing, more accurate results, and eliminates the need for additional corrections.
If you’re searching for a RoHS testing machine in India that ensures compliance with minimal hassle, T7 with FP Method is the way forward. Get in touch to learn how our advanced RoHS testing machines can benefit your business!
