How to do the RoHS Test

When you check the RoHS test compliance, It must be noted that the analysis values of x-ray fluorescence light provide information on the presence or absence of controlled substances in elemental form. Must pay special attention to such as Cr and Br, the result is total Cr and total Br, and does not reflect the form of its existence. Therefore, if Cr and Br are present, hexavalent chromium, PBB, PBDE must be confirmed using a confirmation test program. On the other hand, if there is no Cr and Br, then Cr(V), .PBB, PBDE cannot exist.

The analytical method for RoHS test must be carefully corrected. Spectral interference, matrix effects, and other effects need to take into account, which may affect the intensity of fluorescent radiation.
A: Cd, may be interfered by Br, Pb, Sn and Sb
B: Pb: may be interfered by Br
C.Hg: may be interfered by Br and Pb, when the sample contains high concentrations of Ca and Fe.
D:Cr. Interfered by CI
E: Br may be interfered by Pb and fe.

In addition, the thickness of the sample has an effect on the intensity of fluorescence, especially when measuring Cd. The reference sample must have the same thickness as the sample and be comparable.

Generally speaking, XRF is a comparative analysis method. The analysis results are always based on analysis and calibration. As a RoHS tester, it can be used in conjunction with a liquid chromatograph (to detect phthalates 6P and 7P in RoHS test). Compose a complete set of RoHS test equipment program.

Advantages and features of EDX-2 RoHS tester:
• High-resolution, high-definition camera for easy operation.
• All imported core technology and original parts from Europe and America.
• Camera and cabin lighting system, real-time view the test position of the sample.
• Reliable power supply over-current and short-circuit protection to ensure equipment safety.
• Automatic control test system, convenient for customers to use.
• Already include the gold plate and standard material EU calibrate certificate.

EDX-2_Rohs test equipment

Lisun Instruments Limited was found by LISUN GROUP in 2003. LISUN quality system has been strictly certified by ISO9001:2015. As a CIE Membership, LISUN products are designed based on CIE, IEC and other international or national standards. All products passed CE certificate and authenticated by the third party lab.

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