MDL: Method Detection Limit。 It should be noted in the report that Chinese is the "limit value of method detection".
MDL in the p>RoHS test report is the lowest detection limit value of the equipment for this substance, that is, the lowest lotus content that can be detected.
when the content of this substance in the sample is lower than this limit, the equipment can't detect it, which is reflected in the report. Similarly, when the report shows that this substance is ND.
it doesn't mean that this sample must not contain this substance, but it may contain it, but the content is so low that the equipment can't detect it.
PBBs and PBDEs. The new RoHS2. test item 211/65/EC directive was changed to RoHS1 items of lead (Pb), cadmium (Cd), mercury (Hg), hexavalent chromium (Cr6+), PBDEs and PBDEs.
increasing di-n-butyl phthalate (DBP), n-butyl benzyl phthalate (BBP), 2- hexyl phthalate (DEHP) and hexabromocyclododecane (HBCDD).
RoHS-* * lists six harmful substances, including: lead Pb, cadmium Cd, mercury Hg, hexavalent chromium Cr6+, polybrominated diphenyl ether PBDE, polybrominated diphenyl ether PBB
RoHS standard 25/618/EC resolution. The limits of six harmful substances are:
The maximum allowable contents of lead (Pb), mercury (Hg), hexavalent chromium (Cr6+), polybrominated diphenyl ether (PBB) and polybrominated diphenyl ether (PBDE) are .1%(1ppm), and cadmium (cd) is .1%(1ppm).