What are the EU RoHS detection methods? The RoHS calibration standard sample includes elements restricted by the RoHS directive: mercury, lead, cadmium, bromine and chromium. Bromine and chromium represent PBDE/PBB and hexavalent chromium respectively. The standard sample also includes six elements commonly used as polyolefin additives or fillers: arsenic, chlorine, antimony, tin, zinc and sulfur.

European Union RoHS detection method

1. Anion: British blue technology ion chromatography

After pretreatment with oxygen bomb combustion and British blue technology, it is directly analyzed by ion chromatography

2. Cations and their valence states:

It can be detected by British blue cation chromatography, ion selective electrode method and atomic absorption method

Determination of the valence state of cationic elements can be analyzed by voltammetry

Pronunciation of Rohs.

/rous/

Refer to IEC62321:2008 Procedures for Determination of Concentration of Six Restricted Substances in Electronic and Electrical Products for testing methods

A. First, XRF is used for non-destructive screening, which is fast, efficient, non-destructive and low cost. However, there are many interference factors and large errors.

B. The concentrations of Pb, Cd and Hg were determined by AAS or ICP-AES after microwave digestion and acid digestion.

C. After Soxhlet extraction, the concentrations of PBBs and PBDEs were determined by GC-MS.

D. Use the point test method or boiling water extraction method to determine the concentration of Cr6+in the colorless surface layer, or use the ultraviolet visible spectrophotometer to test according to EPA 3060A.