Lead (Pb) Testing
Lead in Consumer Electronics
Manufacturers use lead in various consumer electronics, primarily through soldering. This process melts thin wires of an alloy (usually some combination of lead and tin) into a paste that can physically bond two separate conductive metals together without breaking the electrical connection. In consumer electronics, soldering with lead is often used to affix chips and the CPU to a computer’s motherboard.
RoHS Compliance Standards
RoHS mandates that lead can only be used in electronics at a concentration of 1,000 parts-per-million (ppm), or 0.1% of its mass. This standard does not apply to the whole of the product but instead to each of its constituent parts that can be mechanically separated. For example, the lead solders binding the various components to the motherboard must make up less than 1,000 ppm of the component when it is chemically analyzed.
Only once each component is individually found to be compliant is the entire product judged fit for sale in EU member nations. To accommodate manufacturers’ need for confirmation that their products are RoHS compliant, Applied Technical Services performs lead testing on electronic consumer products.