Common Test Cases Sharing

Test Content:

Using X-ray fluorescence analyzer, rapid and simultaneous determination of multiple elements, through X-ray penetration of electrons inside the atom, by the outer electron replenishment to produce characteristic X-rays, according to the intensity of the characteristic X-rays of the elements, you can get information on the content of each element. Main tests: 1.Pb,2.Cd,3.Hg,4.Cr6+,5.PBBs,6.PBDEs. the content of the six harmful substances in the above homogeneous substances can not exceed the limited value, including 0.01% for cadmium and 0.1% for the rest.

Inspection Purpose:

Test samples, lead, cadmium, mercury, hexavalent chromium, polybrominated biphenyls (PBB), polybrominated diphenyl ethers (PBDE) and other six hazardous substances in line with the RoHS Directive requirements

Commonly Used Equipment:

X-ray fluorescence analyzer, divided into energy dispersion type and wavelength dispersion type

Caution:

Can only measure the elements but not compounds. But because XRF is a surface chemical analysis, so the measured sample must meet many conditions to be accurate, such as a smooth surface, uniform composition. If the composition is not homogeneous, it can only mean that the composition of that micro-region measured by XRF is so, the other can not be indicated.