RoHS Restricted Materials

The EU RoHS Directive (2011/65/EU) restricts the maximum allowable levels of six hazardous substances: lead (Pb), cadmium (Cd), hexavalent chromium (Cr6+), mercury (Hg), polybrominated biphenyl (PBB) and polybrominated diphenyl ether (PBDE) flame retardants to 0.1% or 1000 ppm (except for cadmium, which is limited to 0.01% or 100 ppm) by weight of homogeneous material in electrical equipment and electronic products. In order to manufacture electrical and electronic products within or import into the European Union, manufacturers are responsible for providing due diligence documentation for RoHS compliance.

Why RoHS Compliance Testing?

Usually Component Engineering team at OEM design center, takes the responsibility of collecting RoHS and other compliance data from the all component manufacturers and suppliers. But still there is a chance of missing RoHS compliance, because of unavailability of RoHS materials data for a few components, or you get incorrect RoHS data from certain faulty suppliers.

Compliance to RoHS and Lead-Free Regulation can offer access to new markets and increased your long-term success. If you are serious about showing compliance to RoHS and other hazardous substance regulations, it is better to test and screen all the components before using in your product design.

How to do Testing/Screening for RoHS Compliance

In-House Testing of RoHS

If your organization is manufacturing a component or assembling a final product, if you want to have total control over RoHS compliance testing, then x-ray fluorescence (XRF) is a common method. Both Portable XRF and Desktop XRF technology offer a cost-effective, non-destructive testing method that can quickly confirm a product meets the standards set.

RoHS Testing Services from External Laboratories

RoHS compliance product and material testing services are to verify the components are RoHS compliant. Testing can include standard testing for the EU RoHS Directive, China RoHS, Korea RoHS, and California RoHS requirements. RoHS analytical laboratories are staffed with expert chemists and advanced instrumentation for RoHS related electronic component testing.

Independent laboratories provide an excellent service to companies that test on a limited basis or require extremely detailed product analysis. However, many organizations prefer having in-house testing capabilities because they want to:

  • Eliminate long-term laboratory and shipping costs
  • Avoid the hassle of shipping components/products out
  • Gain full control over the testing
  • Speed up the delivery process and avoid waiting for test results

RoHS Testing Methods include: XRF screening, ICP-MS, ICP-OES, GC-MS, GC-ECD, FTIR, UV-vis, and other custom specific RoHS testing methods.

Test Scope and Method for Testing RoHS Restricted Substances

Lead (Pb)/ Lead Compounds – IEC62321,cdv/EPA3050B/Eepa3052
Cadmium (Cd)/ Cadmium Compounds- IEC62321,cdv/EPA3050B/Eepa3052
Mercury (Hg)/ Mercury Compounds – IEC62321,cdv/EPA3050B/Eepa3052
Hexavalent-Chromium (Cr6+) Compounds – IEC62321,cdv/EPA3060A/ISO3613
PBBs (Polybrominated biphenyls) – IEC62321,cdv/EPA3540C
PBDEs (Polybrominated diphenylethers) – IEC62321,cdv/EPA3540C