What does halogen-free mean?

Halogen-free refers to the regulation of halogen element content in electronic products. Electronic products whose halogen element content meets the relevant regulations are called halogen-free products (the standard content stipulated by different countries and regions is slightly different).

For non-halogenated requirements, different products have different limiting standards:

If there are no halogenated wires and cables, the halogen index is:

The value of all halogens is 50PPM (according to PREN regulation14582); Content of hydrogen halide gas produced after combustion

According to the requirements of IEC 6 1249-2-2 1, the definition of halogen-free is that the contents of bromine and chlorine are less than 900ppm respectively, and the total contents of bromine and chlorine are less than 1500ppm, so it is halogen-free.

Extended data

Halogen group elements: refer to the elements of the seventh main group (ⅶ a) in the periodic table of elements, including five elements of fluorine, chlorine, bromine, iodine and cymene, collectively referred to as halogen.

Halogen, as a typical and most active nonmetal, mostly exists in the form of halogen compounds in nature. Its characteristic is that there are seven electrons in the outermost electron shell, and it is easy to get one electron to form a stable halogen compound.

Halogen-free environmental protection means that plastics do not contain halogen (fluorine, chlorine, bromine and iodine).

Materials containing organic halides may degrade during processing to produce hydrogen halide, which corrodes equipment and is difficult to recover. Carcinogens such as dioxins may be released when burning. Therefore, many environments now require the use of halogen-free materials.

Halogen-free materials may not be environmentally friendly, because they may also contain other substances harmful to human health or the environment, such as heavy metals.

Baidu encyclopedia-halogen-free