We sell populated circuit boards. How do we demonstrate compliance with RoHS?
This is a difficult subject. The best and cheapest way is to get information on RoHS compliance for each material or component from your suppliers. If this is not possible, you have a difficult task. You will have to get information for each “homogeneous material” comprising your populated circuit board. It would be best to test each material BEFORE they get made into individual components. Barring that, supply enough individual parts to your lab (including samples of solders) so they may be tested – it is very difficult, if not impossible, to test every homogeneous material on a populated board for RoHS compliance. That is why ASTM International Committee F40 has proposed testing materials for compliance prior to their use in component manufacture: it is easier, and it is less costly to the entire supply chain.
