This page is intended to provide more information surrounding the two categories of RoHS compliance that are offered by Positronic — 1) RoHS 5 of 6 and; 2) RoHS 6 of 6. The following table compares the allowable limits of the six base restricted substances for each category.
|Substance||RoHS 5/6 Allowable Limit||RoHS 6/6 Allowable Limit|
|Mercury (Hg)||1000 ppm||1000 ppm|
|Cadmium (Cd)||100 ppm||100 ppm|
|Hexavalent chromium (Cr6+)||1000 ppm||1000 ppm|
|Polybrominated biphenyl (PBB)||1000 ppm||1000 ppm|
|Polybrominated diphenyl ether (PBDE)||1000 ppm||1000 ppm|
|Lead (Pb)||40000 ppm||1000 ppm|
As you can see, the allowable limit of lead is what distinguishes 5/6 compliance from 6/6 compliance. This difference is explained by Exemption 6c within the RoHS directive, which allows up to 4% (40000 ppm) lead content in machinable alloys. Positronic offers nearly all products with RoHS 5/6 compliance. Select products can be purchased as 6/6 compliant. Contact Technical Sales for more information.
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Mark Sample, Director of Operations
We are committed to reliably providing high quality parts that perform as expected the first time and every time. QA is actively engaged in leveraging our Quality Management System to continuously improve our processes in order to meet the high expectations of our customers.